European queen gripped by part of book title (7)
I believe the answer is:
peerage
'title' is the definition.
(I've seen this before)
'european queen gripped by part of book' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'queen' becomes 'ER' (short for Elizabeth Regina ie Queen Elizabeth).
'gripped by' indicates putting letters inside.
'part of book' becomes 'page' (a page in a book).
'e'+'er'='eer'
'eer' placed within 'page' is 'PEERAGE'.
(Other definitions for peerage that I've seen before include "Book of the nobility" , "The nobility as a group" , "Book listing nobles" , "Listing of the nobility (eg, Burke's)" , "Ranks of the nobility" .)