Step up, being against standing still (9)
I believe the answer is:
promotion
'step up' is the definition.
(I've seen this before)
'being against standing still' is the wordplay.
I cannot quite understand how this works, but
'being' could be 'pro' (pro is a kind of being) and 'pro' is found in the answer.
'against' could be 'on' (I've seen this in other clues) and 'on' is present in the answer.
This explanation may well be incorrect...
(Other definitions for promotion that I've seen before include "upgrading" , "Publicity campaign" , "that should result in more money" , "Advertising campaign" , "Step up" .)