Crossword Genius

Desire to grow old in Oxon town (7)

Ross

I believe the answer is:

wantage

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'oxon town' is the definition.
I can't tell whether this definition defines the answer.

'desire to grow old' is the wordplay.
'desire' becomes 'want' (want is a kind of desire).
'to grow old' becomes 'age' (synonyms).
'want'+'age'='WANTAGE'

'in' is the link.

Can you help me to learn more?

(Another definition for wantage that I've seen is " Oxfordshire town".)

I've seen this clue in The Times.
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