Crossword Genius

Fish about for a plan (4)

Ross

I believe the answer is:

idea

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

'for a plan' is the definition.
(both can mean an intention)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for idea that I've seen before include "Purpose" , "Notion, concept" , "Plan" , "Something imagined in the mind" , "intellectual product" .)

I've seen this clue in The Times and The Sunday Times.
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.