Colourful stuff from dodgy transparencies AA sent out (6,6)
I believe the answer is:
Here is my best explanation:
'colourful stuff' is the definition.
'dodgy transparencies aa sent out' is the subsidiary indication.
'dodgy' is an anagram indicator.
'sent out' indicates named letters should be taken away.
'transparencies' with 'aa' removed is 'trnsprencies'.
'trnsprencies' with letters rearranged gives 'screenprints'.
'from' is the link.