Excitement of Euripides's last epic novel (5)
I believe the answer is:
spice
'excitement' is the definition.
(thesaurus)
'euripides's last epic novel' is the wordplay.
'last' suggests the final letters.
'novel' indicates an anagram (letters in a new or novel order).
The last letter of 'euripides' is 's'.
'epic' anagrammed gives 'pice'.
's'+'pice'='SPICE'
'of' acts as a link.
(Other definitions for spice that I've seen before include "Something providing excitement" , "eg Mace, ginger, Posh" , "Flavouring substance" , "Eg, turmeric" , "Eg, cinnamon" .)