Crossword Genius

A mob destroying last of Arab’s crops (6)

Ross

I believe the answer is:

arable

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'a mob destroying last' is the definition.
I can't tell whether this defines the answer.

'arab's crops' is the wordplay.
'crops' becomes 'le' (I can't justify this - if you can you should give a lot more credence to this answer).
'arab'+'le'='ARABLE'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for arable that I've seen before include "Of land, capable of growing crops" , "Fit for crop growing" , "Capable of being tilled" , "Of land, fit to be cultivated" , "farming land!" .)

I've seen this clue in The Times.
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