Do rise if included in my temper (6)
I believe the answer is:
modify
'temper' is the definition.
(I've seen this before)
'do rise if included in my' is the wordplay.
'rise' says the letters should be written backwards.
'included in' indicates putting letters inside.
'do' backwards is 'od'.
'od'+'if'='odif'
'odif' inserted within 'my' is 'MODIFY'.
(Other definitions for modify that I've seen before include "temper" , "Adapt" , "Reshape" , "Make small changes to" , "Make partial changes to" .)