Iris or Declan or Tim? (6)

I believe the answer is:

orrice

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'iris or declan' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'or tim?' is the wordplay.
'tim?' becomes 'rice' (I can't explain this - if you can you should believe this answer much more).
'or'+'rice'='ORRICE'

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