Crossword Genius

An idea of self-importance (7)

Ross

I believe the answer is:

conceit

This clue is a double definition.

'an idea' is the first definition.
(thesaurus)

'self-importance' is the second definition.
(thesaurus)

'of' is the link.

(Other definitions for conceit that I've seen before include "Fanciful notion; self-pride" , "Vanity; fanciful notion" , "Fanciful notion; excessive pride in oneself" , "Overbearing self-esteem" , "Excessive self-pride" .)

I've seen this clue in The Globe and Mail.
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