Hurry up, or skip a payment at work (4,2,6)
I believe the answer is:
make it snappy
'hurry up' is the definition.
(phrase used to tell someone to hurry up)
'skip a payment at work' is the wordplay.
'at work' indicates anagramming the letters.
'skip'+'a'+'payment'='skipapayment'
'skipapayment' is an anagram of 'MAKE IT SNAPPY'.
'or' is the link.
(Other definitions for make it snappy that I've seen before include "Hurry up! (slang)" , "do it quickly" , "Come along" , "step on it" , "Be quick about it (colloq.)" .)