Mate grabbing husband with fury is a beast (9)
I believe the answer is:
phalanger
'beast' is the definition.
(phalanger is a kind of beast)
'mate grabbing husband with fury' is the wordplay.
'mate' becomes 'pal' (I've seen this in another clue).
'grabbing' means one lot of letters goes inside another.
'husband' becomes 'h' (abbreviation).
'with' is a charade indicator (letters next to each other).
'fury' becomes 'anger' (fury is intense anger).
'pal' placed around 'h' is 'phal'.
'phal'+'anger'='PHALANGER'
'is a' is the link.
(Other definitions for phalanger that I've seen before include "Marsupial" , "Lemur-like creature" , "may be flying in Australia" , "Little Aussie's" .)