Feigned and fanciful fact-feed (8)
I believe the answer is:
affected
'feigned' is the definition.
('affect' can be a synonym of 'feign')
'fanciful fact-feed' is the wordplay.
'fanciful' indicates an anagram (a fanciful or silly ordering of the letters).
'fact'+'feed'='factfeed'
'factfeed' with letters rearranged gives 'AFFECTED'.
'and' acts as a link.
(Other definitions for affected that I've seen before include "in a pretentious way" , "attacked" , "Artificial of manner, pretentious" , "Putting on airs, being emotionally moved" , "Influenced or touched by an external factor" .)