* Ten solutions contain a slice of PASTRAMI (2 down), not included in the wordplay of their clues.
Across
7 paradox PARA/DOX(y)
8* pastern PAST/ER/N(ationalist)
10 statue STATU(t)E
11 up in arms PURITANISM minus IT (anag)
12 broadside BROADS/IDE
13 feint faint (hom)
15 pillow fight cryptic def
19* straw STRA/(heathro)W
21* stratagem STRA + MEGA/T(ime) (rev)
23 Dartmoor DART + MOOR
24 emblem ’EM/B(raw)L/’EM
25* ceramic C<(tal)E/RAMI>C
26* Pasteur PAST + R(even)UE (rev)
Down
1* pasture PAST + (cl)U<(answe)R>E
2 pastrami PAST/R(ecords)/A(gricultural)/M(ethods)/I(ntroduced)
3 Dover sole DOES LOVER (anag)
4,22 David Bowie AVID/BOW in EID (rev)
5* strafe STRA/F(ranc)E
6* framing RAMI in desiGN For (hidden)
9 Muddy Waters MUDDY (the) WATERS [d. 1983]
14 bilateral BI<LATERA>L(l)
16 headbutt BUT in DEATH (anag)
17* strayed STRA/YE/D(emocrat)
18 revenue RE/VENUE
20* astral ASTR + (w)<AL>(s)<AL>(l)