Neat work by hairdresser? (4)
I believe the answer is:
trim
'neat' is the definition.
(synonyms)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for trim that I've seen before include "Edging material - in good order" , "Cut off; slim and fit" , "Neat and tidy as a town in Meath" , "Shorten" , "Tidy; cut" .)