Cartoon character shot viewing organ (6)
I believe the answer is:
popeye
'cartoon character' is the definition.
(comic strip character)
'shot viewing organ' is the wordplay.
'shot' becomes 'pop'.
'viewing organ' becomes 'eye' (I've seen this in another clue).
'pop'+'eye'='POPEYE'
(Other definitions for popeye that I've seen before include "Spinach-eating sailor" , "Cartoon sailor (showing amazement?)" , "mariner?" , "The Sailor Man" , "Bluto's rival" .)