Test cricket series (5)
I believe the answer is:
ashes
'test cricket series' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for ashes that I've seen before include "Eng./Aus. cricket trophy" , "Cinders - which were once kept in the 3 20 at 18" , "sports contest" , "` `..... to ....., dust to dust' ' (prayer)" , "Cricket honour in the fire" .)