Some modesty once over there (3)

I believe the answer is:

yon

'over there' is the definition.
(I've seen this before)

'some modesty once' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'YON' can be found hidden inside 'modesty once'.

(Another definition for yon that I've seen is " Those Scots".)

I've seen this clue in The Telegraph.

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