Make a muffler, maybe (4)
I believe the answer is:
knit
'make a muffler maybe' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for knit that I've seen before include "get together" , "Work with wool and needles" , "Bind together" , "Join together (with needles)" , "Make something with wool and needles" .)