Guinea, say: pound plus? (4)
I believe the answer is:
land
'guinea say' is the definition.
(I know that Guinea is African country)
'pound plus?' is the wordplay.
'pound' becomes 'L' (the pound sign is based on an L).
'plus?' becomes 'and' (I've seen this before).
'l'+'and'='LAND'
(Other definitions for land that I've seen before include "Put in" , "Gain" , "See 22" , "Disembark" , "German region" .)