What does the cryptic crossword clue "Primate kept up by weird nightmare (5)" mean?

The definition is "Primate". The wordplay uses hidden reversed. Hidden reversed in "primate kept up by weIRD NIghtmare" The answer is INDRI.

Primate kept up by weird nightmare (5)

Independent Cryptic #11659 | 3 Down | 2024-02-22 flower