Stop leg getting broken with jewellery (6)
I believe the answer is:
bangle
'jewellery' is the definition.
(bangle is a kind of jewellery)
'stop leg getting broken' is the wordplay.
'stop' becomes 'ban' (I've seen this before).
'getting broken' indicates anagramming the letters.
'leg' with letters rearranged gives 'gle'.
'ban'+'gle'='BANGLE'
'with' is the link.
(Other definitions for bangle that I've seen before include "Pale, spiritless" , "Item of jewellery" , "Rigid bracelet or anklet" , "A bracelet from Bengal" , "Jewellery worn around the wrist" .)