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Bikini, for instance, at a high price (5)

Ross

I believe the answer is:

atoll

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'bikini' is the definition.
(Bikini Atoll is an example)

'at a high price' is the wordplay.
'at' is a charade indicator (letters next to each other).
'high price' becomes 'toll' (I can't justify this - if you can you should believe this answer much more).
'a'+'toll' is 'ATOLL'.

'for instance' acts as a link.

Can you help me to learn more?

(Other definitions for atoll that I've seen before include "Coral island(s) surrounding a lagoon" , "Bikini, say" , "Allot (anag.)" , "Circular coral reef" , "Ring-shaped coral island" .)

I've seen this clue in the Evening Standard.
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