No 13338, Saturday 28 Aug 2021, Arden

 Across

1 Want a platform, since all are regularly getting listless(13) LACKADAISICAL {LACK}{A}{DAIS}{sInCe AlL}
10 The problem one has squeezing this fruit(5) LEMON (T)
11 Hesitate to go and get sick(9) VACILLATE {VAC{ILL}ATE}
12 Fair game, by adding bits it changes substantially(4,5) AUNT SALLY {BITS+AUNT+SALLY} = {SUBSTANTIALLY}
13 First man said to become a king(5) MIDAS {Man}{SAID*}
14 JFK perhaps was attached to music and wine(7) AIRPORT {AIR}{PORT}
16 Essentially heat metal to destroy it slowly(3,4) EAT INTO {hEAT}tIN}{TO} Anno ok?
18 Sinkhole about to swallow the tree(7)  CALDERA {C{ALDER}A}

20 Correct, some people exposed a bone(4,3) TRUE RIB {TRUE}{tRIBe}
22 Fibre mattress is always kept inside(5) SISAL (T)
24 She has a lithe body, is fitter(9) HEALTHIER {HE{A+LITHE*}R}
26 Made to follow Roman church as money is involved in trade deal(9) LATINISED {DEAL*} around {TIN}{IS}
27 Confirm right away and follow(5) ENSUE {ENSUrE}
28 Caught on — going down or stuck-up?(13) CONDESCENDING {C}{ON}{DESCENDING}

Down

2 A recluse gets married to a social worker(7) ALMONER {A}{L{M}ONER}
3 Cattle range gets a CRT(9) KINESCOPE {KINE}{SCOPE}
4 Stayed up with Dickens(5) DEVIL {LIVED<=}
5 Perhaps if they get caught, exit on both sides — need to keep moving(5,4) ITCHY FEET {IF+THEY*} around {C} +{ExiT}
6 Normal significance of promoting some religion(5) ISLAM (T<=)
7 Leave a group while playing(7) ABANDON {A}{BAND}{ON}
8 Permits booze, the whole lot must go(9,4) CLEARANCE SALE {CLEARANCES}{ALE}
9 Foolishly feed a stubborn mule(5,2,6) BEAST OF BURDEN {FEED+A+STUBBORN}
15 Wooden boxes — way to be carried in trains(3,6)  TEA CHESTS {TEA CHE{ST}S}
17 Rely on title document(5,4) TRUST DEED {TRUST}{DEED}
19 See those wandering in the country(7) LESOTHO {L{THOSE*}O}
21 Stops storing sticky stuff outside home(5,2) REINS IN {RE{IN}S IN}
23 Grooved to a song about new beginning(5) LINED {LI{N}ED}
25 Beer — doubled intake will make one woozy(5) ADDLE {A{D}{D}LE}

Reference List

About=Ca, Money=Tin, Right=R, Caught=C
Married=M, Caught=C, Playing=On, Way=St, See=Lo, Home=In

Colour/Font Scheme

Definition, Solution, Component letters, Embedded links, Theme word,  Reference list word, Anagram Indicator, C/C indicator, Reversal Indicator, Hidden word Indicator, Letter Pick indicator, Deletion Indicator, Homophone Indicator, Movement Indicator, Positional Indicator, Substitution, Indicator, Opposite indicator, Link/Connector, Extraneous