Person serving Queen may see European question about resistance (7)
I believe the answer is:
equerry
'person serving queen' is the definition.
(an equerry is an attendant in a royal household)
'european question about resistance' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'question' becomes 'query' ('query' can be a synonym of 'question'**).
'about' means one lot of letters goes inside another.
'resistance' becomes 'r' (abbreviation).
'query' placed around 'r' is 'querry'.
'e'+'querry'='EQUERRY'
'may see' is the link.
(Other definitions for equerry that I've seen before include "Personal attendant of a member of the royal family" , "Officer attending a royal family member" , "Attendant in royal household" , "Attendant of royalty" , "Officer of the British royal household" .)