Cut and slice bananas round tip of branch (6)
I believe the answer is:
chisel
'cut' is the definition.
(thesaurus)
'slice bananas round tip of branch' is the wordplay.
'bananas' is an anagram indicator (informal term for mad).
'round' indicates putting letters inside.
'tip of' indicates one should take the final letters.
The last letter of 'branch' is 'h'.
'slice' with letters rearranged gives 'cisel'.
'cisel' enclosing 'h' is 'CHISEL'.
'and' acts as a link.
(Other definitions for chisel that I've seen before include "Eg, woodworking tool" , "Flat steel tool with a cutting edge" , "Slangily cheat with wood-working tool" , "It can be cold in the workshop" , "Wood-shaping tool" .)