Fracturing a hip seems to give you stress (9)
I believe the answer is:
emphasise
'stress' is the definition.
('stress'->'emphasize' is in my internal thesaurus and 'ize'->'ise')
'fracturing a hip seems' is the wordplay.
'fracturing' indicates anagramming the letters (I've seen 'fractured' mean this).
'a'+'hip'+'seems'='ahipseems'
'ahipseems' anagrammed gives 'EMPHASISE'.
'to give you' acts as a link.
(Other definitions for emphasise that I've seen before include "Mashes pie (anag.)" , "Place stress on" , "Give extra importance to" , "Stress, underline" , "'Stress, accentuate (9)'" .)