He has a name for bringing bad luck (5)
I believe the answer is:
jonah
'he' is the definition.
'a name for bringing bad luck' is the wordplay.
I cannot quite understand how this works, but
'a' is found in the answer.
'name' could be 'jon' and 'jon' is present in the answer.
A single letter 'h' remains which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
'has' is the link.
Can you help me to learn more?
(Other definitions for jonah that I've seen before include "Whalemeat prophet" , "Prophet - bringer of bad luck" , "In the Bible, he is swallowed by a great fish" , "One who brings bad luck, like Hebrew prophet." , "Prophet swallowed by whale" .)