Film Lyle’s partner after hole in one (7)
I believe the answer is:
acetate
'film' is the definition.
(type of material)
'lyle's partner after hole in one' is the wordplay.
'lyle's partner' becomes 'tate' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'after' says to put letters next to each other.
'hole in one' becomes 'ace' (I've seen this before).
'tate' put after 'ace' is 'ACETATE'.
Can you help me to learn more?
(Other definitions for acetate that I've seen before include "Recording" , "film on overhead projector" , "It once covered records" , "Visual aid" , "Synthetic fabric" .)