Photograph barrister's material (4,4)

I believe the answer is:

shot silk

'material' is the definition.

'photograph barrister's' is the wordplay.
'photograph' becomes 'shot' (shot is a kind of photograph).
'barrister' becomes 'silk' (I've seen this before).
'shot'+'silk'='SHOT SILK'

I've seen this clue in The Guardian.

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