Fish for man leaving campanile (6)
I believe the answer is:
plaice
'fish' is the definition.
(plaice is a kind of fish)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for plaice that I've seen before include "N. Atlantic flatfish" , "Tasty flatfish I place here" , "A succulent flat-fish" , "Large flat fish" , "The fish sounds as if it hits the spot" .)