Attracted by a duller composition (7)

I believe the answer is:

allured

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'attracted' is the definition.
Although both the answer and definition are past participle verbs, I can't understand how they can define each other.

'by a duller composition' is the wordplay.
'by' says to put letters next to each other.
'composition' indicates an anagram.
'duller' is an anagram of 'llured'.
'a' put next to 'llured' is 'ALLURED'.

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I've seen this clue in The Globe and Mail.

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