— Fracture; time (8)
I believe the answer is:
compound
This clue is a double definition.
'fracture' is the first definition.
(compound fracture is a kind of fracture)
'time' is the second definition.
(thesaurus)
(Other definitions for compound that I've seen before include "Whole formed by separate elements" , "Chemical substance; enclosed space" , "Blended substance - enclosed area" , "Kind of interest accumulating on capital plus interest" , "Combination of elements - make worse - fenced-in area" .)