Crossword Genius

Periodically insular, Liam’s girl (5)

Ross

I believe the answer is:

nuala

'girl' is the definition.
(Irish girl's name)

'periodically insular liam's' is the wordplay.
'periodically' means one should take alternating letters (letters must be selected 'every so often').
'insular'+'liam'='insularliam'
The alternate letters of 'insularliam' are 'NUALA'.

I've seen this clue in The Times.
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