Point on missile launched from submarine grating (8)
I believe the answer is:
strident
'grating' is the definition.
(I've seen this before)
'point on missile' is the wordplay.
'point' becomes 'S' (South).
'on' means one lot of letters go next to another (in a down clue, letters appear on others).
'missile' becomes 'Trident' (UK nuclear weapons system).
's'+'trident'='STRIDENT'
'launched from submarine' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for strident that I've seen before include "Noisy" , "Raucous" , "Grating - urgent" , "Unpleasantly rough" , "making a lot of noise" .)