Across
Feature of Trump and PM putting the Queen off (6)
Takes apart splinter group in contemptuous talk (8)
Building block of wood, what's backed with board in port (6)
Able to move quickly for a take-off in an emergency (8)
Old Testament book's terribly crude and emotional (14)
Bother in big house having a plant with narcotic properties (10)
Worry when study is neglected in research establishment (4)
One of two Nobel physicists said to swank (4)
Figures in trouble at sea, reportedly Germanic folk (10)
Disappoint others giving first instruction to unload the truck? (3,3,4,4)
Sunday cruciverbalist, maybe, who has cutting edge? (8)
Symphony offering racy stuff (not Beethoven's Fourth) (6)
Last thing you want in head and on collar? (8)
Commercial to air in busy shopping season (6)
Down
Person who is horrible, just a bit, about nothing (4)
A short song about aged Greek (7)
Fellow curtly abandoning diocese and ecclesiastical groups (8)
One caught entering square reprimanded, treated as trash? (11)
Being obsequious would put Mrs May off (6)
Small room, not half brilliant for accommodating superior writer (7)
Renders Happy Birthday, say, with nicely introduced bumps (9)
Untidy employees making a contribution to Warwickshire's coat of arms (6,5)
Crowd is idle, wandering round, to be got going (9)
Lacking special apparel, knight is thrown out, not admired (8)
What could play music in particular key, hard stuff (7)
Towel I'd discarded, when lots of bits are dry (3,4)
Bit of paper stuck on yellow garment worn by some women (6)
Like school pupil sounding unrelaxed (4)
Type letters or click words in the clue