Roam around having a broken hip, and you need a pain-killer! (7)
I believe the answer is:
morphia
'you need a pain-killer' is the definition.
I can't tell whether this defines the answer.
'roam around having a broken hip' is the wordplay.
'around' indicates anagramming the letters.
'having' is an insertion indicator.
'a broken' is an anagram indicator.
'roam' anagrammed gives 'mora'.
'hip' anagrammed gives 'phi'.
'mora' enclosing 'phi' is 'MORPHIA'.
'and' is the link.
Can you help me to learn more?
(Other definitions for morphia that I've seen before include "Painkilling drug" , "hypnotic drug" , "Opiate" , "Sedative" .)