Pay to conduct (4)
I believe the answer is:
wage
I believe this clue is a double definition.
'pay' is the first definition.
('wage' can be a synonym of 'pay')
'conduct' is the second definition.
(I've seen this before)
'to' acts as a link.
(Other definitions for wage that I've seen before include "Money earned" , "Regular pay" , "Payment to an employee" , "Pay (enough to live on?)" , "Regular money for work" .)