Buoyant oratorios primarily in G sharp? (6)
I believe the answer is:
afloat
'buoyant' is the definition.
(I've seen this before)
'oratorios primarily in g sharp?' is the wordplay.
'primarily' says to take the initial letters.
'in' indicates putting letters inside.
'g sharp?' becomes 'aflat' (I've seen this in another clue).
The initial letter of 'oratorios' is 'o'.
'o' going within 'aflat' is 'AFLOAT'.
(Other definitions for afloat that I've seen before include "Borne on the water" , "On board at sea, on ship" , "At sea, on the water" , "On the surface" , "With one's head above water" .)