Ball-and-socket joint (8)
'ball-and-socket joint' is the definition.
(hip is a kind of ball-and-socket joint)
This is the entire clue.
(Other definitions for hip that I've seen before include "Pelvic joint" , "In modern slang, cool and sophisticated" , "Haunch" , "Side of body - very sophisticated" , "Trendy or stylish, like fruit of the wild rose" .)
'ball-and-socket joint' is the definition.
(shoulder is a kind of ball-and-socket joint)
This is all the clue.
(Other definitions for shoulder that I've seen before include "Joint between the neck and arm" , "Take burden onto this joint" , "See 10" , "Part of the body (that bears burdens?)" , "Undertake (burden)" .)