Notice plea excludes European Queen, for example (7)
I believe the answer is:
placard
'notice' is the definition.
(I know that notice can be written as placard)
'plea excludes european queen for example' is the wordplay.
'excludes' is a deletion indicator.
'european' becomes 'e' (abbreviation e.g. EU).
'queen for example' becomes 'card' (queen is a kind of card).
'plea' with 'e' taken out is 'pla'.
'pla'+'card'='PLACARD'
(Other definitions for placard that I've seen before include "Bill" , "Make card, pal, into kind of ad" , "what may be carried in a demo" , "Printed notice" , "Sign for public display" .)