Point to the rotten cheats one is keeping an eye on (7)
I believe the answer is:
watches
'an eye on' is the definition.
I can't judge whether this definition defines the answer.
'point to the rotten cheats one is keeping' is the wordplay.
'point' becomes 'w' (West).
'to the rotten' is an anagram indicator.
'one is keeping' is an insertion indicator (some letters kept inside).
'cheats' anagrammed gives 'atches'.
'w' inserted within 'atches' is 'WATCHES'.
Can you help me to learn more?
(Another definition for watches that I've seen is " Observes; timepieces".)