African animal park facilities discussed (4)
I believe the answer is:
zulu
'african' is the definition.
(I've seen this before)
'animal park facilities discussed' is the wordplay.
'animal park' becomes 'zoo' (I've seen this before).
'facilities' becomes 'loo' (I've seen this in other clues).
'discussed' indicates a 'sounds like' (homophone) clue.
'zoo'+'loo'='zooloo'
'zooloo' sounds like 'ZULU'.
(Other definitions for zulu that I've seen before include "African warrior under Chaka" , "Member of a South African tribe" , "Bantu language of south-eastern Africa" , "Ethnic group of southern Africa" , "Yankee follower" .)