Circuits with electrical fault (5)
I believe the answer is:
lapse
'fault' is the definition.
(I know that lapse is a type of fault)
'circuits with electrical' is the wordplay.
'circuits' becomes 'laps' ('lap' can be a synonym of 'circuit').
'with' says to put letters next to each other.
'electrical' becomes 'e' (this might be a standard abbreviation of which I'm unaware).
'laps'+'e'='LAPSE'
Can you help me to learn more?
(Other definitions for lapse that I've seen before include "Interval" , "Error cause by weakness or inattention" , "Slip; sounds like circuits" , "Slip back" , "Fall back" .)