Performer possibly seen and heard (2,7)

I believe the answer is:

ed sheeran

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'performer' is the definition.
Both the answer and definition are singular nouns.
Maybe you can see an association between them that I don't see?

'possibly seen and heard' is the wordplay.
'possibly' indicates anagramming the letters.
'and' means one lot of letters go next to another.
'seen'+'heard'='seenheard'
'seenheard' is an anagram of 'ED SHEERAN'.

Can you help me to learn more?

(Another definition for ed sheeran that I've seen is " Musician".)

I've seen this clue in The Times.

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