Cook that gets smashed in break (5)
I believe the answer is:
baker
'cook' is the definition.
(type of cook)
'smashed in break' is the wordplay.
'smashed in' indicates an anagram.
'break' with letters rearranged gives 'BAKER'.
'that gets' is the link.
(Other definitions for baker that I've seen before include "His 12 is 13" , "Bread and cake maker" , "One who makes bread" , "job" , "one with lots of dough" .)