Attracted by United wearing the Liverpool strip (7)

I believe the answer is:

allured

'attracted' is the definition.
(to allure is to attract or draw in)

'united wearing the liverpool strip' is the wordplay.
'united' becomes 'U' (as in Man U, English football team).
'wearing' is an insertion indicator.
'the liverpool strip' becomes 'allred' (Liverpool FC play in red).
'u' going inside 'allred' is 'ALLURED'.

'by' acts as a link.

I've seen this clue in The Guardian.

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