Get round to eating bananas to acquire energy (9)
I believe the answer is:
negotiate
'get round' is the definition.
'to eating bananas to acquire energy' is the wordplay.
'bananas' indicates anagramming the letters (informal term for mad).
'to acquire' indicates putting letters inside.
'energy' becomes 'e' (physics symbol as in E=mc2).
'to'+'eating'='toeating'
'toeating' with letters rearranged gives 'ngotiate'.
'ngotiate' going around 'e' is 'NEGOTIATE'.
(Other definitions for negotiate that I've seen before include "Deal, bargain" , "Pass round" , "Bring about by mutual agreement" , "I get a note (anag) - bargain" , "Find a way over (a difficult path)" .)