Crossword Genius

Stay with idea, oddly, to find underwear (8)

Ross

I believe the answer is:

lingerie

'underwear' is the definition.
(lingerie is a kind of underwear)

'stay with idea oddly' is the wordplay.
'stay' becomes 'linger' (lingering is a kind of staying**).
'with' means one lot of letters go next to another.
'oddly' indicates alternate letters.
The alternating letters of 'idea' are 'ie'.
'linger'+'ie'='LINGERIE'

'to find' is the link.

(Other definitions for lingerie that I've seen before include "Women's underwear and nightwear" , "One from W Atlantic island group" , "Slinky undergarments" , "Women's flimsy underwear" , "flimsy stuff" .)

I've seen this clue in The Telegraph.
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