Considers working during breaks, ignoring wife (7)
I believe the answer is:
reckons
'considers' is the definition.
('reckon' can be a synonym of 'consider')
'working during breaks ignoring wife' is the wordplay.
I cannot quite understand how this works, but
'working' could be 'on' (on can mean working or activated) and 'on' is found within the answer.
The remaining letters 'recks' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
(Other definitions for reckons that I've seen before include "Judges" , "Estimates" , "Conkers (anag.)" , "Considers" , "Calculates" .)