Calendar spoilt with lid of paint stripper (3,6)
I believe the answer is:
lap dancer
'stripper' is the definition.
(I've seen this before)
'calendar spoilt with lid of paint' is the wordplay.
'spoilt with' indicates anagramming the letters.
'lid of' indicates taking the first letters (in a down clue, the lid could be the top letter).
The initial letter of 'paint' is 'p'.
'calendar' anagrammed with 'p' can make 'LAP DANCER'.
(Other definitions for lap dancer that I've seen before include "one barely performs" , "performer" , "she barely moves close" , "stripper" , "Erotic entertainer" .)