Farming authority regularly destroyed suede and fleece (7)
I believe the answer is:
defraud
'fleece' is the definition.
(thesaurus)
'farming authority regularly destroyed suede' is the wordplay.
'farming authority' becomes 'DEFRA' (Department for Environment, Food and Rural Affairs).
'regularly destroyed' means one should take alternating letters (letters removed at regular intervals).
The alternate letters of 'suede' are 'ud'.
'defra'+'ud'='DEFRAUD'
'and' acts as a link.
(Other definitions for defraud that I've seen before include "Deprive of by deceit" , "Cheat, deceive" , "Swindle" , "Bilk" , "Diddle" .)