Thrill European and others after retreat (5)
I believe the answer is:
elate
'thrill european' is the definition.
'elate' can be an answer for 'thrill' (I've seen this in another clue). I'm unsure of the 'european' bit.
'and others after retreat' is the wordplay.
'and others' becomes 'etal' (short for 'et alia', 'and others' in Latin).
'after' becomes 'e' (I am not sure about this - if you are sure you should believe this answer much more).
'retreat' is a reversal indicator.
'etal'+'e'='etale'
'etale' back-to-front is 'ELATE'.
Can you help me to learn more?
(Other definitions for elate that I've seen before include "Make ecstatically happy" , "Doctor suitor to Anne Page (MWOW)" , "Exhilarate, put in high spirits" , "Bring joy" , "Fill with high spirits" .)