Orphan's fund log-in hacked (9)
I believe the answer is:
foundling
'orphan's' is the definition.
(thesaurus)
'fund log-in hacked' is the wordplay.
'hacked' indicates an anagram (I've seen 'hacking' mean this).
'fund'+'log'+'in'='fundlogin'
'fundlogin' with letters rearranged gives 'FOUNDLING'.
(Other definitions for foundling that I've seen before include "Child left" , "Deserted child" , "Abandoned baby" , "abandoned child" , "Abandoned infant" .)