Tooth made from zinc is 'orrible (7)
I believe the answer is:
incisor
'tooth' is the definition.
(incisor is a kind of tooth)
'from zinc is 'orrible' is the wordplay.
'from' indicates the answer is hidden within the clue.
'INCISOR' can be found hidden inside 'zinc is orrible'.
'made' is the link.
(Other definitions for incisor that I've seen before include "companion could be Goofy" , "carnivore requires?" , "Canine" , "Type of tooth" , "Cutting tooth" .)