Body buried by rector solemnly (5)
I believe the answer is:
torso
'body' is the definition.
(a person's middle)
'buried by rector solemnly' is the wordplay.
'buried by' indicates a hidden word.
'TORSO' is hidden within 'rector solemnly'.
(Other definitions for torso that I've seen before include "Body (excluding head, neck and limbs)" , "Trunk, something unfinished" , "Roost on trunk?" , "Body, minus its head and limbs" , "Poorly-dressed child" .)