Force-fed Roth novel in private (3,3,6)
I believe the answer is:
off the record
'in private' is the definition.
(off the record means unofficially or in private)
'force-fed roth novel' is the wordplay.
'novel' indicates an anagram (letters in a new or novel order).
'force'+'fed'+'roth'='forcefedroth'
'forcefedroth' with letters rearranged gives 'OFF-THE-RECORD'.
(Other definitions for off the record that I've seen before include "Deleted from disc" , "Where a needle used be taken" , "Where the rejected tracks are kept" , "not intended for release?" , "Confidential - not for publication" .)