Glass horse on front of cabinet broken (8)
I believe the answer is:
schooner
'glass' is the definition.
(I know that schooner is a type of glass)
'horse on front of cabinet broken' is the wordplay.
'front of' indicates taking the first letters (the letter at the front of the word).
'broken' is an anagram indicator.
The first letter of 'cabinet' is 'c'.
'horse'+'on'+'c'='horseonc'
'horseonc' is an anagram of 'SCHOONER'.
(Other definitions for schooner that I've seen before include "Two-master; a glass" , "Two-masted sailing ship" , "No chores on this sailing ship" , "Type of glass" , "wooden vessel" .)