Familiar with how mike’s come to be mine? (5)
I believe the answer is:
known
'familiar' is the definition.
(associated in meaning)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for known that I've seen before include "Famous" , "Recognised, familiar" , "In the public domain?" , "Noted" , "Widely recognized" .)