Pioneering gardeners made Nevada special (4-3-3)

I believe the answer is:

adam-and-eve

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

'pioneering gardeners' is the definition.
I can't tell whether this defines the answer.

'made nevada special' is the wordplay.
'special' indicates anagramming the letters.
'made'+'nevada'='madenevada'
'madenevada' anagrammed gives 'ADAM-AND-EVE'.

Can you help me to learn more?

(Other definitions for adam-and-eve that I've seen before include "Eden couple" , "First couple on earth" .)

I've seen this clue in The Irish Times.

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