Commision and raise seemed reasonable (5,2)
I believe the answer is:
added up
'seemed reasonable' is the definition.
(I've seen this before)
'commision and raise' is the wordplay.
'commision' becomes 'added' (I can't justify this - if you can you should believe this answer much more).
'and' is a charade indicator (letters next to each other).
'raise' becomes 'up' (I've seen this in other clues).
'added'+'up'='ADDED UP'
Can you help me to learn more?
(Other definitions for added up that I've seen before include "Made sense of" , "seemed reasonable" , "Reckoned" , "Totalled" , "Totted" .)