Crossword Genius

Supplying water to crop or airing it somehow (10)

Ross

I believe the answer is:

irrigation

I'm a little stuck... Click here to teach me more about this clue!

'supplying' is the definition.
(I know that irrigation is a type of supplying)

'or airing it somehow' is the wordplay.
'somehow' indicates anagramming the letters.
'or'+'airing'+'it'='orairingit'
'orairingit' anagrammed gives 'IRRIGATION'.

'water to crop' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for irrigation that I've seen before include "The supply of water to crops" , "watering process" , "water distribution" , "an answer to all clues, initially" .)

I've seen this clue in The Telegraph.
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