Mentioned that umpire had made mistake (8)

I believe the answer is:

referred

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'mentioned' is the definition.
Although both the answer and definition are past participle verbs, I can't see how one could define the other.

'umpire had made mistake' is the wordplay.
'umpire' becomes 'ref' (short for referee).
'had' means one lot of letters go next to another.
'made mistake' becomes 'erred' (I've seen this before).
'ref'+'erred'='REFERRED'

'that' acts as a link.

Can you help me to learn more?

(Other definitions for referred that I've seen before include "Directed for information or made mention" , "Brought up, mentioned" , "Adverted, cited" , "Adverted, brought up" , "looked up" .)

I've seen this clue in The Irish Times.

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