Get over tangled vegetation, clipping top (9)
I believe the answer is:
negotiate
'clipping top' is the definition.
Although both the answer and definition are verbs in their base form, I don't see how they can define each other.
'get over tangled vegetation' is the wordplay.
I cannot really understand how this works, but
'get' could be 'go' (synonyms) and 'go' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for negotiate that I've seen before include "I get a note (anag) - bargain" , "Find a way over (a difficult path)" , "Bring about by mutual agreement" , "as diplomat does" , "treat! Yes!" .)