Puts on airs (4)
I believe the answer is:
lays
This could be a double definition.
'puts' is the first definition.
(laying is a kind of putting)
'airs' is the second definition.
The definition and answer can be both related to communication as well as being plural nouns.
Maybe there's a link between them I don't understand?
'on' acts as a link.
Can you help me to learn more?
(Other definitions for lays that I've seen before include "Minstrel's melodies" , "Produces an egg" , "Puts down; songs" , "How Pertelote produces" , "Produces eggs" .)