Doctor ran aid centre, having been here before (12)

I believe the answer is:

reincarnated

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'been here before' is the definition.
The definition suggests a singular noun but the answer is not.

'doctor ran aid centre' is the wordplay.
'doctor' indicates an anagram.
'ran'+'aid'+'centre'='ranaidcentre'
'ranaidcentre' is an anagram of 'REINCARNATED'.

'having' is the link.

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I've seen this clue in The Irish Times.

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