Not working after present discharge (4,3)
I believe the answer is:
give off
'discharge' is the definition.
(giving off is a kind of discharging)
'not working after present' is the wordplay.
'not working' becomes 'off' (I've seen this before).
'after' says to put letters next to each other.
'present' becomes 'give' ('give' can be a synonym of 'present'**).
'off' put after 'give' is 'GIVE OFF'.
(Other definitions for give off that I've seen before include "issue" , "Emit (eg, a smell)" .)