Who will have dissected a film about allies (9)
I believe the answer is:
anatomist
'who will' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'dissected a film about allies' is the wordplay.
I cannot really see how this works, but
'a' could be 'an' and 'an' is present in the answer.
'film' could be 'mist' (I've seen this in other clues) and 'mist' is located in the answer.
'about' could be 'a' (abbreviation in Chambers) and 'a' is found within the answer.
The remaining letters 'to' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
'have' is the link.
Can you help me to learn more?
(Other definitions for anatomist that I've seen before include "Body expert" , "Expert in the structure of human and animal bodies" , "Gray, for one" , "one studies bodies" , "One studying bodies" .)