Looked in dog ledger (5)
I believe the answer is:
ogled
'looked' is the definition.
(ogling is a kind of looking)
'in dog ledger' is the wordplay.
'in' indicates the answer is hidden within the clue.
'OGLED' is hidden within 'dog ledger'.
(Other definitions for ogled that I've seen before include "regarded with desire" , "Eyed lustfully" , "Looked at with amorous intentions" , "Longingly looked at" , "Eyed in a lascivious manner" .)