Coincide partly with (7)
I believe the answer is:
overlap
'coincide partly with' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for overlap that I've seen before include "have something in common" , "Coincide in time or space" , "Lie partly on top of" , "Partially cover" , "Common area of interest" .)