Article dropped by someone jumping -- he's untouchable (5)
I believe the answer is:
leper
'untouchable' is the definition.
(thesaurus)
'article dropped by someone jumping he's' is the wordplay.
I cannot quite understand how this works, but
'by' could be 'per' and 'per' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for leper that I've seen before include "Social reject" , "Person shunned socially" , "Sufferer from dread disease, once made to wear bell" , "Social outcast" , "skin disease" .)