Horsey contributor to parables (4)

I believe the answer is:

arab

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'horsey contributor to parables' is the definition.
I can't judge whether this defines the answer.

'contributor to parables' is the wordplay.
'contributor to' says the answer is hidden in the clue (the letters of the answer contribute to the clue).
'ARAB' is hidden within 'parables'.

Can you help me to learn more?

(Other definitions for arab that I've seen before include "Qatari or Omani, say" , "Small riding horse" , "One from the Middle East or North Africa" , "Saudi or Omani, perhaps" , "Semite" .)

I've seen this clue in the Evening Standard.

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