Primate left flightless bird right there (5)

I believe the answer is:

lemur

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'primate' is the definition.
(I know that lemur is a type of primate)

'left flightless bird right there' is the wordplay.
'left' becomes 'l' (common abbreviation).
'flightless bird' becomes 'emu' (emu is a kind of flightless bird).
'right there' becomes 'r' (common abbreviation. I am not sure about the 'there' bit.).
'l'+'emu'+'r'='LEMUR'

Can you help me to learn more?

(Other definitions for lemur that I've seen before include "Bushy-tailed primate" , "Ring-tailed prosimian" , "Madagascan monkey" , "Social climber" , "Tree-dwelling primate" .)

I've seen this clue in The Irish Times.

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