Where to confer knighthood upon the excellent (5)
I believe the answer is:
dubai
'where' is the definition.
The definition suggests a singular noun which matches the answer.
'confer knighthood upon the excellent' is the wordplay.
'confer knighthood' becomes 'dub' (I've seen this in another clue).
'upon' is a charade indicator (letters next to each other).
'the excellent' becomes 'ai' (resembles 'A1', old-fashioned term for excellent).
'dub'+'ai'='DUBAI'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for dubai that I've seen before include "capital and port" , "One of the UAE and its capital" , "Gulf sheikhdom" , "sheikdom?" , "Gulf emirate and port city" .)