Changes to suit a new purpose (6)
I believe the answer is:
adapts
'changes to suit a new purpose' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for adapts that I've seen before include "Modifies or changes for another use" , "Alters to suit new conditions" , "Converts to alternative use" , "Makes fit for a new purpose" , "Alters to fit" .)