Personal photo files distributed online (6)
I believe the answer is:
selfie
'personal photo' is the definition.
(I've seen this before)
'files distributed online' is the wordplay.
'distributed' is an anagram indicator.
'online' becomes 'e' (as in e-mail or e-commerce).
'files' with letters rearranged gives 'selfi'.
'selfi'+'e'='SELFIE'
(Other definitions for selfie that I've seen before include "21 [PHOTO]" , "Personal photo" .)