Well-known mail-fair was redesigned (8)

I believe the answer is:

familiar

I'm a little stuck... Click here to teach me more about this clue!

'well-known' is the definition.
(similar in meaning)

'mail-fair was redesigned' is the wordplay.
'mail-fair' anagrams to 'FAMILIAR'.
But, I'm unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for familiar that I've seen before include "Well-known, easily recognisable" , "Everyday; recognisable" , "spirit" , "Witch's cat is well acquainted" , "forward" .)

I've seen this clue in the Sydney Morning Herald.

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