Play, perhaps, Hamlet, involving Claudius's crown (5)
I believe the answer is:
dance
'play' is the definition.
(thesaurus)
'hamlet involving claudius's crown' is the wordplay.
'hamlet' becomes 'dane' (Hamlet is a famous Dane).
'involving' means one lot of letters goes inside another.
'crown' says to take the initial letters (crown can mean the top of something).
The first letter of 'claudius' is 'c'.
'dane' going around 'c' is 'DANCE'.
'perhaps' acts as a link.
(Other definitions for dance that I've seen before include "Ball; hop" , "Artistic, nonverbal communication" , "Eg, tango, waltz" , "Eg, waltz, foxtrot" , "Terpsichorean activity" .)