The Queen in Ireland (4)

I believe the answer is:

erin

'ireland' is the definition.

'the queen in' is the wordplay.
'the queen' becomes 'er' (Elizabeth Regina**).
'er'+'in'='ERIN'

(Other definitions for erin that I've seen before include "Land" , "Old Ireland" , "Early and poetic name here" , "Let ... Remember (song)" , "Ireland (poet.)" .)

I've seen this clue in The Guardian and The Telegraph.

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