Chest broken (4)
I believe the answer is:
bust
I believe this is a double definition.
'chest' is the first definition.
(thesaurus)
'broken' is the second definition.
(I've seen this before)
(Other definitions for bust that I've seen before include "Chest; bankrupt" , "Head-and-shoulders sculpture" , "Chest - broke" , "Breast - broken" , "Portrait - broken" .)