Solution to 21D 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 Doctor takes certain pains, refuses a box of goodies (8,5) TREASURE CHEST{TREA{SURE}{aCHES}T}
10 Some of it is awful, certainly a deep wound (5) ULCER [T]
11 Quiet study sitting in recliner, one can’t hear you (9) LIPREADER {LI{P}{READ}ER}
13 Wild partying, try copying (5) APING PArtyING* [CA]
14 Informs — not about taking some measures (5,2) TELLS ON {T{ELLS}ON<=}
20 Leaders drop out from ‘bottoms up’ — play for first place (7) TOPMOST {bOTTOMS+uP}*
22 As one goes for identity, person becomes oppressive (5) HUMID HUM(-an+id)ID
26 Compete to stop setter getting right up to third place — that’s on the table (9) SERVIETTE {SE(+r)R{VIE}TTE(-r)}
28 Literary work — another best seller gets permit (6,7) BELLES LETTRES {BEST+SELLER}* over {LET}
DOWN
2 Then assume one hundred will turn up for the performance (7) RECITAL {LAT{1C}ER}<=
4 Dark one has left (5) UNLIT {UN{L}IT}
6 Scavenger vocally disdainful about money (5) HYENA {H{YEN}A}
8 Avoid those — teach Harry to be brief (3,2,3,5) CUT TO THE CHASE {CUT}{THOSE+TEACH}*
9 Fellow newspapermen lost the top place — it’s total collapse (13) FRAGMENTATION {F}{RAG MEN}{sTATION}
15 They open special school for learners (9) NEOPHYTES {THEY+OPEN+S}*
17 Machine effect (9) IMPLEMENT [DD]
19 In a dilemma to go up one (7) GUMTREE [C&DD]
21 Goods lost in transit over road — there is shock (7) O?T?A?E (Addendum - OUTRAGE {OUT{R}AGE} - See comments)
23 Make a hole close to old stream (5) DRILL {olD}{RILL}
25 Note carrying article on the subject (5) THEME {ME}<=>{THE}
Reference List
Quiet = P, Measure = ELL, No = N, Good = G, High = H, Right = R, Hundred = C, Time = T, Left = L, Second = S, Fellow = F, Special = S, Road = R







