A bishop finished, almost — in heaven? (5)
I believe the answer is:
above
'in heaven?' is the definition.
(I've seen this in another clue)
'a bishop finished almost' is the wordplay.
'bishop' becomes 'B' (abbreviation for bishop in chess).
'finished' becomes 'over' (over can mean finished or ended).
'almost' means to remove the last letter (almost the whole word is kept).
'over' with its last letter taken away is 'ove'.
'a'+'b'+'ove'='ABOVE'
(Other definitions for above that I've seen before include "Aloft" , "Mentioned earlier" , "On top of" , "At a higher level" , "Superior to" .)