14 across
Prey
for
an
aardvark:
one
Contra
(4)
Prey for an aardvark: one Contra (4)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
See Contra at the end there — that's your definition, meaning against or opposed. Start with the aardvark's dinner, an ANT, then stick I ("one") on the end, and you've got your answer.