Given pictures — dullest art, I fancy (11)

I believe the answer is:

illustrated

'given pictures' is the definition.
(to illustrate something is to give it pictures)

'dullest art i fancy' is the wordplay.
'fancy' indicates anagramming the letters.
'dullest'+'art'+'i'='dullestarti'
'dullestarti' with letters rearranged gives 'ILLUSTRATED'.

(Another definition for illustrated that I've seen is " With pictures".)

I've seen this clue in The Guardian.

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