Some laughing at Edmond kept in school (5)
I believe the answer is:
gated
'kept in school' is the definition.
(I've seen this before)
'some laughing at edmond' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'GATED' can be found hidden inside 'laughing at edmond'.
(Other definitions for gated that I've seen before include "Under curfew" , "deprived of liberty for a while" , "temporarily confined" , "Barred from leaving" , "Confined to college" .)