Comic strip character, cricketer, second out (6)
I believe the answer is:
batman
'comic strip character' is the definition.
(I've seen this before)
'cricketer second out' is the wordplay.
'cricketer' becomes 'batsman' (I've seen this before).
'second' becomes 's' (common abbreviation).
'out' is a deletion indicator.
'batsman' with 's' removed is 'BATMAN'.
(Other definitions for batman that I've seen before include "Military servant" , "Officer's personal servant" , "Officer's servant; the Caped Crusader" , "Masked crusader of cartoon and film" , "Cartoon hero or officer's servant" .)