What's in a name? (3)

I believe the answer is:

ian

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'name?' is the definition.

'what's in a' is the wordplay.
'in a' anagrams to 'IAN'.
Though, I am unsure how this is indicated.

Can you help me to learn more?

(Other definitions for ian that I've seen before include "Scottish John" , "- Botham, cricketer" , ". . . Botham, . . . Woosnam" , "The familar Dr Paisley" , "- Fleming (James Bond)" .)

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