Time to clear out European flattery (7)
I believe the answer is:
treacle
'flattery' is the definition.
(I've seen this before)
'time to clear out european' is the wordplay.
'time' becomes 't' (abbreviation).
'to' means one lot of letters go next to another.
'out' indicates an anagram (out can mean wrong or inaccurate).
'european' becomes 'e' (abbreviation e.g. EU).
'clear' is an anagram of 'reacl'.
't'+'reacl'+'e'='TREACLE'
(Other definitions for treacle that I've seen before include "Viscous liquid" , "Electra (anag)" , "Something sticky" , "Carroll's sisters had to live with" , "Sweet, black viscous substance" .)