Laughed on air about place in Dublin (12)

I believe the answer is:

dunlaoghaire

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'in dublin' is the definition.
I know nothing about this answer so I can't tell whether this works.

'laughed on air about' is the wordplay.
'about' is an anagram indicator.
'laughed'+'on'+'air'='laughedonair'
'laughedonair' anagrammed gives 'DUNLAOGHAIRE'.

'place' is the link.

Can you help me to learn more?

(Another definition for dunlaoghaire that I've seen is " port near Dublin".)

I've seen this clue in The Irish Times.

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