Pooh’s friend to get lip fixed (6)
I believe the answer is:
piglet
'pooh's friend' is the definition.
(friend of Winnie the Pooh)
'get lip fixed' is the wordplay.
'fixed' indicates anagramming the letters.
'get'+'lip'='getlip'
'getlip' with letters rearranged gives 'PIGLET'.
'to' acts as a link.
(Other definitions for piglet that I've seen before include "Little creature" , "19's little friend" , "Small occupant of sty" , "One of Christopher Robin's animals" , "Young sow or boar" .)