Seeing red in abattoir at Edgware (5)
I believe the answer is:
irate
'seeing red' is the definition.
(I've seen this in another clue)
'in abattoir at edgware' is the wordplay.
'in' indicates a hidden word.
'IRATE' is hidden within 'abattoir at edgware'.
(Other definitions for irate that I've seen before include "become irritated" , "Ticked off" , "Not happy" , "Aggrieved" , "Extremely cross" .)