Make familiar sound of a zany (8)
I believe the answer is:
acquaint
'make familiar' is the definition.
(I've seen this in another clue)
I don't understand the rest of the clue.
(Other definitions for acquaint that I've seen before include "American to introduce" , "Make someone familiar with" , "Familiarise" , "Make aware or familiar with, say the facts" , "brief" .)