Approach snooker shot and fail completely (2,2,3)
I believe the answer is:
go to pot
This clue could be a double definition.
'approach snooker shot' is the first definition.
I know that 'snooker' relates to this answer.
'fail completely' is the second definition.
'go to pot' can be an answer for 'fail' (thesaurus). I am unsure of the 'completely' bit.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for go to pot that I've seen before include "as stakes do" , "If you want a cup of tea" , "Fall into ruin" , "Fall into neglect" , "Decline" .)