Catch Euripides play on vacation (4)
I believe the answer is:
espy
'catch' is the definition.
(thesaurus)
'euripides play on vacation' is the wordplay.
'euripides' becomes 'es' (I can't justify this - if you can you should believe this answer much more).
'on vacation' suggests removing the centre.
'play' with its centre removed is 'py'.
'es'+'py'='ESPY'
(Other definitions for espy that I've seen before include "Discern" , "Make out at a distance" , "Observe, notice" , "Catch sight of (poetic)" , "Catch a glimpse of" .)