Across
1 I define raft gone to pieces by its defining characteristics (11) DIFFERENTIA
9 Expand the street passing through Big clock (7) B ROAD EN
10 Removing it from caption makes it understated (6) SUBTLE
11 Pope takes down clock tower by order (5) EDICT
12 With pickaxes initially, start off for settlement to plunder (7) PILLAGE
15 Make amends for allowing opener an extra run (4) ABYE
16 Tree for distinguished humourist (6,4) AUGUST PLUM
18 English tend to half the armies’ appeals (10) ENTREATIES
20 Sophisticated coward lacking cognizance (4)CHIC
23 Pedestrian in favour of regular sea biscuit (7)PROSAIC
24 First lover of Austen’s heroine gets preliminary proposition (5)LEMMA
26 Fish comes to pond with intrinsically Indian origins (6)DIPNOI
27 Kill administrator by removing drips (7)EXECUTE
28 Dismissal from the faction might lead to death (6,5) KILLING PARTY FIRING PARTY
Down
2 Write to signal loss of accountant (6)INDITE
3 Letting out criminals from cages is admirable (4)FINE
4 Restores some regard for all but top two schools (10)RESTITUTES
5 The aristocracy source opium for upright leader who is marriageable (8) NOBILITY
6 Criminal, sick, held most of the endowment (7)ILLEGAL
7 Sailor from North East confined, denied… (9) AB NE GATED
8 … harmony of American university found in modest surrounds (6)COMITY
13 Restraining the brusque, sickly (10)CURTAILING
14 Freed; lost initial nervous predisposition; became thin (9)EMACIATED
17 First of his kin lies injured in European capital (8)HELSINKI
19 Countermining characters at destinations (7)TERMINI
21 Croon into hidden microphone? Rubbish! (6)HUMBUG
22 Head of church’s perjury of sacred text to patron (6)CLIENT
25 Testing stage for Indian son (4) BETA
:clap::clap::clap: A bit tough!