Pretend a finger's almost broken (5)
I believe the answer is:
feign
'pretend' is the definition.
(I know that feign is a more specific form of pretend)
'a finger's almost broken' is the wordplay.
'almost' means to remove the last letter (almost the whole word is kept).
'broken' is an anagram indicator.
'finger' with its last letter taken off is 'finge'.
'finge' anagrammed gives 'FEIGN'.
(Other definitions for feign that I've seen before include "outdated shape" , "Affect" , "Pretend, put on show of" , "Simulate, fake" , "Pretend to experience" .)