Gosh - a palindrome! (3)

I believe the answer is:

wow

I believe this clue is a double definition.

'gosh' is the first definition.

'a palindrome' is the second definition.

(Other definitions for wow that I've seen before include "Exclamation of surprise or praise - a palindrome" , "Great success" , "Expression of surprised admiration" , "Palindrome exclamation of astonishment or admiration" , "Expression of amazement" .)

I've seen this clue in the Evening Standard.

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