Smart alec in work now allegedly (4,3)
I believe the answer is:
know-all
'smart alec' is the definition.
(I've seen this before)
'in work now allegedly' is the wordplay.
'in' says the answer is hidden in the clue.
'KNOW-ALL' is hidden in the letters of 'work now allegedly'.
(Other definitions for know-all that I've seen before include "Someone who refuses to accept advice or information from others" , "Person who behaves like encyclopedia 94-3)" , "Type of person who wont take advice" , "Pedantic" , "One who thinks they have all the answers" .)