Temper; razor sharpener (5)
I believe the answer is:
strop
I believe this is a double definition.
'temper' is the first definition.
(I've seen this before)
'razor sharpener' is the second definition.
(I've seen this in another clue)
(Other definitions for strop that I've seen before include "Fit of bad temper" , "temper tantrum" , "rage" , "Sharpen on piece of leather" , "Bad temper - sharpen (a razor)" .)