Across
Where castles built with double fences in (7)
One entering classic I see, striking a chord? (7)
See 18
Friendly manner that's displayed by weather presenter? (4,5)
Off to collect daughter, drive perhaps? (3,7)
Island bird heading off (4)
Blinking incompetent, clueless trade initiatives, those primarily dividing Britain, say? (11)
9a
Witty opening in springboard, you might say, for novel (3,8,5)
Open spirit, cap removed (4)
Outline location accommodating university in new hotel (10)
What Russians are ill-advised to do? Leader in general challenging (9)
See 8
Building which depicts how the baby Jesus was carried? (7)
Shaking rear, character imbibing a shedload in the end — that's her? (7)
Down
What people get paid in the Home Counties? It stinks! (6)
Nothing to drink here ultimately, very dry state (6)
Stick around southern island, very hot (10)
Drag queen's heart left drier (5)
Basic principle of conduct broken by blusterin' film director (9)
Second, not first: it's doubtful (4)
Cross erected, love burying a stud, supposedly dead? (8)
26a
Jaw having dropped, getting zip stuck (8,5)
Being restrained, worker smacked (10)
Hole, inside which pretty terrified inmate starts detention (9)
In source of cash, nothing supports currency without a plan (2,6)
Everything taken the wrong way, say "extremely sorry" initially, then send for — these? (3,5)
Regularly use Tory in City firm (6)
Tenant becoming "tnant" on bottom of missive (6)
Philosopher brought up on what? (5)
Char in stream (4)
Type letters or click words in the clue