In the end Eva Peron's accepted by revolutionary guard (9)
I believe the answer is:
chaperone
'guard' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'in the end eva peron's accepted by revolutionary' is the wordplay.
'in the end' indicates one should take the final letters.
'accepted by' indicates putting letters inside (inserted letters are accepted).
'revolutionary' becomes 'Che' (Che Guevara the Marxist revolutionary).
The final letter of 'eva' is 'a'.
'a'+'peron'='aperon'
'aperon' inserted into 'che' is 'CHAPERONE'.
Can you help me to learn more?
(Other definitions for chaperone that I've seen before include "Young lady's protector" , "Duenna" , "attendant" , "child-minder?" , "my charges are small" .)