Amuse some poor old trout? (6)

I believe the answer is:

tickle

I'm a little stuck... Click here to teach me more about this clue!

'amuse' is the definition.
(I know that amuse can be written as tickle)

I can't explain the rest of the clue.

(Other definitions for tickle that I've seen before include "Stimulate" , "Touch tinglingly" , "Amuse; make tingle" , "Cause giggling by touching lightly" , "Stroke lightly to make laugh" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.