As worn by a drunken peer touring the UK? (6)
I believe the answer is:
peruke
'as worn by a' is the definition.
I can't judge whether this definition defines the answer.
'drunken peer touring the uk?' is the wordplay.
'drunken' indicates anagramming the letters.
'touring' is an insertion indicator (touring can mean going round).
'the uk?' becomes 'uk' ().
'peer' is an anagram of 'pere'.
'pere' going around 'uk' is 'PERUKE'.
Can you help me to learn more?
(Other definitions for peruke that I've seen before include "Ancient wig" , "Old fashionable wig" , "Periwig" , "18th-century wig" .)