Facial hair of border poet (9)
I believe the answer is:
sideburns
'facial hair' is the definition.
(type of facial hair)
'border poet' is the wordplay.
'border' becomes 'side' (a border is the side of something).
'poet' becomes 'burns' (Rabbie Burns 1759-1796 the Scottish poet).
'side'+'burns'='SIDEBURNS'
'of' acts as a link.
(Other definitions for sideburns that I've seen before include "Facial whiskers" , "hirsute growth" , "Cheeky display" , "temple adornments" , "Hair" .)