Boy with an Irish air (5)

I believe the answer is:
danny
This might be a double definition.
'boy' is the first definition.
(boy's name)
'an irish air' is the second definition.
The definition suggests a singular noun which matches the answer.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for danny that I've seen before include "- Kaye, US actor" , "Boy, Kaye or Blanchflower" .)
