Only Abe can produce such hokum (7)
I believe the answer is:
baloney
'hokum' is the definition.
(I've seen this in another clue)
'only abe can produce' is the wordplay.
'can produce' indicates anagramming the letters (I've seen this in other clues).
'only'+'abe'='onlyabe'
'onlyabe' anagrammed gives 'BALONEY'.
'such' acts as a link.
(Other definitions for baloney that I've seen before include "Nonsense; lean yob (anag)" , "foolish talk!" , "Cobblers" , "Tripe < , smoked sausage" , "rhubarb" .)