Current intermittent, failing at first? It's not good for snooker player (2-3)
I believe the answer is:
in-off
'current intermittent failing at first?' is the definition.
The definition suggests a singular noun which matches the answer.
'not good for snooker player' is the wordplay.
I cannot really understand how this works, but
'not' could be 'no' (negative) and 'no' is found within the answer.
The remaining letters 'iff' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'it's' is the link.
Can you help me to learn more?
(Other definitions for in-off that I've seen before include "Pocketing of a snooker ball via a deflection" , "Billiards/snooker shot" , "Error in game" , "Type of cannon in billiards" , "Shot that's good at billiards and foul at snooker" .)