Short in toaster's electrics (5)
I believe the answer is:
terse
'short' is the definition.
('terse' can be a synonym of 'short')
'in toaster's electrics' is the wordplay.
'in' indicates the answer is hidden within the clue.
'TERSE' is hidden in the letters of 'toasters electrics'.
(Other definitions for terse that I've seen before include "Sparing with words; abrupt" , "Crisp and brief" , "precise" , "Brusque, concise" , "Reset to be pithy" .)