Table is terribly brutal (7)
I believe the answer is:
bestial
'brutal' is the definition.
(like a brute or beast)
'table is terribly' is the wordplay.
'terribly' indicates anagramming the letters.
'table'+'is'='tableis'
'tableis' is an anagram of 'BESTIAL'.
(Other definitions for bestial that I've seen before include "Brutish or cruel, hardly human" , "Like an animal; depraved" , "Savage" , "Tables I create, being brutal or cruel" , "Animal-like" .)