Blush perhaps but become friends again (4-2)
I believe the answer is:
make-up
This clue might be a double definition.
'blush perhaps' is the first definition.
The definition suggests a singular noun which matches the answer.
'become friends again' is the second definition.
(I've seen this before)
'but' acts as a link.
Can you help me to learn more?
(Other definitions for make-up that I've seen before include "Invent; constitute" , "Heal breach, become friends again" , "Manufacture" , "Put together" , "Compose (quarrel, story)" .)