Mr Lido correctly addressing the knighted guy (6)
I believe the answer is:
milord
'addressing the knighted guy' is the definition.
I can't judge whether this definition defines the answer.
'mr lido correctly' is the wordplay.
'correctly' indicates an anagram.
'mr'+'lido'='mrlido'
'mrlido' with letters rearranged gives 'MILORD'.
Can you help me to learn more?
(Other definitions for milord that I've seen before include "Sir" , "English nobleman (hist.)" , "Aristocratic address" , "An English gentleman" , "Eng. gentleman, for French" .)