Solution to 8D has been deliberately left unsolved and is to be answered only by a non-regular / novice commenter, with proper annotation. Those who have answered earlier in the week, please give others a chance.
ACROSS
1 Weakness of visiting holy man: crowns from the east (4,4) SOFT SPOT {S{OF}T}{TOPS<=}
5 Jars as footwear worn by husband! (6) SHOCKS {S{H}OCKS}
9 Bun turns out lacking in taste in the middle, not overcooked (7) UNBURNT {BUN+TURNs}*
10 Exercise somehow meant to be a way to address an issue, perhaps? (3,4) PET NAME {PE}{MEANT*}
11
Cell components — X and Y, say — working to replace lost
energy (5)
AXONS AX(-e+on)ONS
12
I'
ll go and play
specialised organ (3,5)
OIL GLAND*
13
Lemurs f
ind Rishikesh accommodating (6)
INDRIS [T]
14 Centre for coa
ling drowned by changing
climate:
irony! (8)
METALLIC {
coaL
ing} in {CLIMATE}*
18 Faith's violent origin involving the Spanish (8) RELIGION {R{EL}IGION*}
20 End of review of integration (6) TARGET [DD] [T<=] - See comments
23 A bit dark to change sides — something of this sort leaves a bad taste in one's mouth (8) BRACKISH B(-l+r)RACKISH
25 Frequently suppressed daily buzzer, ultimately intruding in the morning (5) ALARM {dAiLy}{A{b...eR}M} &lit
27 Tantalisingly, cup's hanging, with one over to go — so near! (7) UPCLOSE {CUP*}{LOoSE}
28 Quiet, more aloof king is absorbed and more difficult to please (7) PICKIER {P}{IC{K}IER}
29
Order of pomf
ret likely getting returned (6)
KILTER [T<=]
30 Everything sickly green is a harmful substance (8) ALLERGEN {ALL}{GREEN*}
DOWN
1 With queen and king cornered, easier to get beaten at a higher frequency (9) SQUEAKIER {QU} and {K} in {EASIER*}
3 Exaggerating and extravagant sister's no good! (9) STRESSING {SISTERS+N+G}*
4 Duty of coach to rookie getting regularly benched (6) OCTROI {cOaCh+To+RoOkIe}
6 Here, you can pay to sleep with attractive male (50% off under recession!) (5) HOTEL {HOT}{maLE<=}
7 Tea and news? English lady's start is sound! (7) CHANNEL {CHA}{NN}{En...h}{Lady}
8 Throw out recycled benches (4) S?E? (Addendum - SPEW (+s)SPEW(-s) - See comments)
10 Signs of life plus evolution around the outskirts of space (6) PULSES {PUL{SpacE}S*}
15 Awful anal ache after sustaining very big fall (9) AVALANCHE {ANAL+ACHE}* over {V}
16
A tarmac bombed by
a navy
craft (9)
CATAMARAN {A+TARMAC}*{A}{N}
17 Check source of priority-zero bugs (6) POLICE {Pr...y}{0}{LICE}
19 Poetic, semi-historical films from last year shown at the opening (7) LYRICAL {histoRICAL}<=>{Last}{Year}
21 Government primarily levelling status of cows, perhaps (7) GRAZING {Go...t}{RAZING}
22 Religious site or place set over hill's peak (6) CHAPEL {C{Hill}APEL*}
24 Suffocate dissenter, essentially under extremely cartoonish fine (5) CHOKE {dissEnter}<=>{Ca...sH}{OK}
26 Trash truck at last, after nearly a month! (4) JUNK {t..cK}<=>{JUNe}
Reference List
Holy man = ST, Husband = H, Exercise = PE, Energy = E, The in Spanish = EL, Over = O, Quiet = P, King = K, Queen = QU, No = N, Good = G, Attractive = HOT, New = N, English = E, Navy = N