Want to remove dead electrical connection (5)
I believe the answer is:
earth
'electrical connection' is the definition.
(I've seen this before)
'want to remove dead' is the wordplay.
'want' becomes 'dearth' (both can mean a lack or scarcity).
'to remove' indicates named letters should be taken away.
'dead' becomes 'd' (abbreviation in government records).
'dearth' with 'd' taken out is 'EARTH'.
(Other definitions for earth that I've seen before include "Dirty hole" , "Fox's underground lair" , "Lair; planet" , "hideaway" , "Heart (anag)" .)