Bluey by Putin? (7)
I believe the answer is:
redhead
'bluey' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for redhead that I've seen before include "Fergie perhaps" , "One with auburn hair" , "Person with rufous hair" , "Auburn-haired person" , "Bluey" .)