Cryptic crossword No 3,662

Across

1. Moronic broadcast showing COVID variant (7)
2. Type of radiation detected in bubbling magma (5)
3. It could maybe be the claret I spilled (7)
4. Hiding away from others, Anna quit ring spinning (12)
5. Two boys grabbing youth's top in front of the Spanish part of a cathedral (4,6)
6. Fuel runs out before Ollie gets organised (6,3)
7. Wish to get a bishop's seal of approval (7)
8. Permitting little bird to fly into winding ginnel (9)
9. Digested topsy-turvy letter in Greek (3)
10. Fully assembled rooftop totem (4,3,2,3)
11. Assist in an identification (3)
12. Show's lead and performers finally all made something improvised on the beach (4,6)
13. Top dog starts to attack little people horsing around (5)
14. Analysed spoken recording revealing excessive bureaucracy (3,4)

Down

1. Make greenhouse gas outside to produce synthetic opioid (9)
2. Disparage question going in for Labour waste (8)
3. One subject describing an allergic reaction (6)
4. Smidgeon held back by Kara Tointon (4)
5. Oscillate tops of wireless internet gadgets getting location errors (6)
6. Martin's fussing around over the final part of the regalia (8)
7. Letter in a different alphabet comes from the teaching assistant (5)
8. Noisy electric whisk in testing stage (4)
9. Enjoying the nightlife? Ten hot members have! (2,3,4)
10. Sort out high-pitched cover for Motorhead (6)
11. An artist represented Icarus with primarily abstract Monkey puzzle trees (10)
12. Forbidden territory where Chinese board games are banned?! (2-2,4)
13. Be noticeably different from Spooner's endangered animal foundation (5,5)
14. As far as you can go in Britain's state transport (5,3)
15. Society girl digested argument (6)
16. Talked about king departing where a river meets the sea (5)