He's maybe hoping to catch you out (7)
I believe the answer is:
fielder
'he's maybe hoping to catch you out' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'he's' is the wordplay.
I cannot really see how this works, but
'he' could be 'field' and 'field' is found within the answer.
The remaining letters 'er' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for fielder that I've seen before include "Player" , "Slip, perhaps" , "he might be in a silly position" , "Cricketing slip, say?" , "One as cover, slip" .)