Incarceration and burial around noon (10)
I believe the answer is:
internment
'incarceration' is the definition.
(I know that internment is a type of incarceration)
'burial around noon' is the wordplay.
'burial' becomes 'interment' (synonyms).
'around' indicates putting letters inside.
'noon' becomes 'n'.
'interment' placed around 'n' is 'INTERNMENT'.
'and' acts as a link.
(Other definitions for internment that I've seen before include "Committal" , "Precautionary measure" , "Detention" , "Confinement of an enemy national" , "Locking up" .)