Solution to 5D 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.
Open for anyone to solve, if not solved by 1 PM.
ACROSS
6 Appreciate 5A, not the first clue! (5) VALUE {V}{A}{cLUE}
7 Apostle had good people with bit of theological understanding (9) JUDGEMENT {JUD{G}E}{MEN}{Th...l}
10 Oracular and keen on exercises involving crosswords mainly! (7) CRYPTIC {CRY}{PT}{In...g}{Cr...s}
11 Domestic broadcast carries trivia every now and then (7) SERVANT {SE{tRiViA}NT}
12 Check what Ram mellowingly bears (7) TRAMMEL [T]
13 When jury is not able to reach a conclusion, one is thrown to the wind! (7) MISTRAL MISTRiAL {MISTR{1}AL}
14 It is used to tie basic dental fitting (7,4) ELASTIC BAND*
19 Book our boxes, prepare one for bedroom (7) BOUDOIR {B}{OU{DO}{1}R}
21 Our land's rough and rugged (7) NODULAR*
23 Spot over large empty cloth (7) SPLOTCH {SP{L}OT}{ClotH} Spot on double duty?
25 Keeps an eye on alien thought process (7) MINDSET {MINDS}{ET}
26 Bend for victory! Rally in response! (9) REFLEXIVE {RE(+flex-v)FLEXVIVE}
27 Five things like basil, not hard to cultivate, chew and digest, say (5) VERBS {V}{hERBS}
DOWN
1 Parents liaise, afterwards youngsters delightfully assemble to enjoy basically (4,4) PLAY DATE Acrostic Semi&lit
2 Upset about men's partitioning of body (6) SEPTUM {UPSET*}{M}
3 One who comes for an animal husbandry tool (10) EJACULATOR [DD]
4 Does sad ballads (4) ODES*
5 Darn! A lost harvest just after killing of farmers' leader! (6) ?E?A?R ()
6 Empty Lift (6) VACATE [DD]
8 Aura is energy in motion, covers large part of our world! (7) EURASIA {AURA+IS+E}*
9 Gossip or anecdote about Rechabite (6) TATTLE {TA{TT}LE}
13 Take time, test one, say for measure of speed (4,6) MACH NUMBER {MAtCH}{NUMBER}
15 John, our ancestor preserved lost works (7) APOSTLE {AP{LOST*}E}
17 One who ill-treats a black client? (6) ABUSER {A}{B}{USER}
18 Free time? One stuffs marijuana mostly! (6) GRATIS {GRA{T}{1}Ss}
20 Better cultivate tulip with minimum fertilisers (6) UPLIFT {UPLI{Fe...s}T*}
22 Study southern part of a state carved out of Serbia from the beginning (2,4) DE NOVO {DEN}{kosOVO}
24 Sounds like healthy praise (4) HAIL (~hale)
Reference List
Good = G, Exercises = PT, Book = B, Large = L, Alien = ET, Victory = V, Men = M, Energy = E, Time = T, yes = Y, Black = B
