Remove it perhaps for extra pay (8)
I believe the answer is:
overtime
'extra pay' is the definition.
(pay for work outside normal working hours)
'remove it perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'remove'+'it'='removeit'
'removeit' anagrammed gives 'OVERTIME'.
'for' acts as a link.
(Other definitions for overtime that I've seen before include "Hours worked and paid for beyond the usual amount" , "Work beyond normal hours? Remove it" , "Extra hours worked" , "Hours worked in excess of usual" , "opportunity for supplementing income" .)