Feign reversing squash term (3,2)
I believe the answer is:
not up
'squash term' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'feign reversing' is the wordplay.
'feign' becomes 'put on' (I've seen this in another clue).
'reversing' says the letters should be written backwards.
'puton' in reverse letter order is 'NOT UP'.
Can you help me to learn more?
(Other definitions for not up that I've seen before include "call in court" , "with tennis call" , "still in bed" .)