Burglar excited about scowl (5)
I believe the answer is:
glare
'scowl' is the definition.
(I've seen this in another clue)
'burglar excited about' is the wordplay.
'about' indicates a hidden word (the clue goes around or about the answer).
'GLARE' is hidden in the letters of 'burglar excited'.
(Other definitions for glare that I've seen before include "Blinding light" , "fierce look" , "Dazzling light (of publicity?)" , "Angry look" , "Shine intensely" .)