Intuitive idea worthy of backing? (5)

I believe the answer is:

hunch

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'intuitive idea' is the definition.
'hunch' can be an answer for 'idea' (hunch is a kind of idea). I'm unsure of the 'intuitive' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for hunch that I've seen before include "protuberance" , "Idea based on intuition" , "Intuitive guess" , "Lump - intuitive feeling" , "Intuition, suspicion" .)

I've seen this clue in the Evening Standard.

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