Chap bent on catching a big fish? (3)
I believe the answer is:
rod
'chap' is the definition.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for rod that I've seen before include "Angler's pole" , "The fly fisherman's stick" , "A stiff stick" , "pistol" , "Fishing pole" .)