Always left nearly in pieces after film (9)
I believe the answer is:
eternally
'always' is the definition.
(I've seen this before)
'left nearly in pieces after film' is the wordplay.
I cannot really see how this works, but
'left' could be 'al' (I've seen this in other clues) and 'al' is found in the answer.
'film' could be 'et' (E.T. the Extra-Terrestrial) and 'et' is found in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for eternally that I've seen before include "for good" , "Always and forever" , "all the time" , "constantly" , "Always and ever" .)