Volley in Oval's out of place! (5)
I believe the answer is:
salvo
'volley' is the definition.
(I've seen this before)
'oval's out of place' is the wordplay.
'out of place' indicates an anagram.
'ovals' with letters rearranged gives 'SALVO'.
'in' acts as a link.
(Other definitions for salvo that I've seen before include "Simultaneous discharge of artillery" , "A volley of shots, perhaps as salute" , "Broadside" , "A simultaneous salute of guns" , "Burst (of applause, insults, artillery etc)" .)