Catch sight of a man who endangers Western security? (4)
I believe the answer is:
espy
This clue could be a double definition.
'catch' is the first definition.
(I've seen this in another clue)
'sight of a man who endangers western security?' is the second definition.
'espy' can be an answer for 'sight' (I've seen this in another clue). I am not certain of the remainder of the definition.
Can you help me to learn more?
(Other definitions for espy that I've seen before include "See" , "Perceive" , "Observe (arch.)" , "Pick out at a distance" , "Spot; observe" .)