Designer cut up about a photograph (8)
I believe the answer is:
polaroid
'photograph' is the definition.
(I know that Polaroid is a type of photograph)
'designer cut up about a' is the wordplay.
'designer' becomes 'dior' (Christian Dior).
'cut' becomes 'lop' (lopping is a kind of cutting).
'up' says the letters should be written in reverse (in down clue: letters go upwards).
'about' indicates putting letters inside.
'dior'+'lop'='diorlop'
'diorlop' in reverse letter order is 'polroid'.
'polroid' going around 'a' is 'POLAROID'.
(Other definitions for polaroid that I've seen before include "Plastic material used in sunglasses" , "film" , "still available immediately" .)