26 across
Stamp
of
approval
when
knight,
say,
invades
country
(7)
Stamp of approval when knight, say, invades country (7)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
Look at country at the end — that's what you're after. Take SEAL, your stamp of approval, and split it open to let N (knight in chess notation) and EG (say, as in "for example") invade it. That gives you SE + N + EG + AL, and there's your West African nation.