Barber's razor sharpener (5)
I believe the answer is:
strop
'barber's razor sharpener' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for strop that I've seen before include "rage" , "wobbly" , "Fit of bad temper" , "Sharpen an old blade" , "temper tantrum" .)