Watch for second coming? (6)
I believe the answer is:
sentry
'watch' is the definition.
(I know that watch can be written as sentry)
'second coming?' is the wordplay.
I cannot really see how this works, but
'second' could be 's' (common abbreviation) and 's' is present in the answer.
The remaining letters 'entry' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Other definitions for sentry that I've seen before include "Military lookout" , "Watchperson" , "Guard on watch" , "Military guard" , "Person standing watch" .)