Frank to leave, taking broken clip (8)
I believe the answer is:
explicit
'frank' is the definition.
(I've seen this before)
'leave taking broken clip' is the wordplay.
'leave' becomes 'exit' ('exit' can be a synonym of 'leave'**).
'taking' means one lot of letters goes inside another.
'broken' indicates anagramming the letters.
'clip' anagrammed gives 'plic'.
'exit' going around 'plic' is 'EXPLICIT'.
'to' acts as a link.
(Other definitions for explicit that I've seen before include "Specific" , "Openly stated" , "Stated without concealment" , "Stated directly, not implied" , "Fully stated" .)