African primate, one of two very young ones destined to be president? (8)
I believe the answer is:
bushbaby
'african primate' is the definition.
(primate native to Africa)
'destined to be president?' is the wordplay.
'destined' becomes 'baby' (I can't justify this - if you can you should give a lot more credence to this answer).
'to' says to put letters next to each other (I've seen this in other clues).
'be president?' becomes 'bush' (two US presidents have been called Bush).
'baby' put after 'bush' is 'BUSHBABY'.
'one of two very young ones' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
(Other definitions for bushbaby that I've seen before include "Small animal" , "Small African lemur, like shrubbery infant" , "African lemur-like primate (closely related to one of two US presidents?)" , "Small, nocturnal, tree-dwelling primate of Africa with large eyes" , "Nocturnal African lemur (closely related to one of two US presidents?)" .)