His name can be said without a hiss (3)
I believe the answer is:
dai
'hiss' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'his name can be said without a' is the wordplay.
I cannot quite understand how this works, but
'a' is present in the answer.
'name' could be 'di' and 'di' is present in the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for dai that I've seen before include "Lloyd George?" , "Welshman" , "Perhaps man in Cardiff" , "Welshman's name" , "Welsh male name" .)