Routine fee taking in work (8)
I believe the answer is:
practice
'routine' is the definition.
(thesaurus)
'fee taking in work' is the wordplay.
'fee' becomes 'price' (I've seen this before).
'taking in' indicates putting letters inside.
'work' becomes 'act' ('act' can be a synonym of 'work'**).
'price' going around 'act' is 'PRACTICE'.
(Other definitions for practice that I've seen before include "It makes perfect, they say" , "training" , "Use" , "attempt at perfection" , "''. . . . . . . . maked perfect''" .)