Question about king following English attendant (7)
I believe the answer is:
equerry
'attendant' is the definition.
(equerry is a kind of attendant)
'question about king following english' is the wordplay.
'question' becomes 'query' ('query' can be a synonym of 'question'**).
'about' is an insertion indicator.
'king' becomes 'r' (r is abbreviation for rex).
'following' says to put letters next to each other.
'english' becomes 'e' (abbreviation).
'query' enclosing 'r' is 'querry'.
'querry' after 'e' is 'EQUERRY'.
(Other definitions for equerry that I've seen before include "Personal attendant of a member of the royal family" , "Attendant of royalty" , "Officer attendant upon British sovereign" , "Military royal attendant" , "Attendant in royal household" .)