Inner Hebridean concept? (4)

I believe the answer is:

idea

'concept?' is the definition.
(concept is a kind of idea)

'inner hebridean' is the wordplay.
'inner' says the answer is hidden in the clue (I've seen 'In' mean this).
'IDEA' is hidden within 'hebridean'.

(Other definitions for idea that I've seen before include "A suspicion of" , "Notion, belief" , "Suggestion" , "Thought; concept" , "Content of cognition" .)

I've seen this clue in The Sun.

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