Grassy piece of cleared land (3)

I believe the answer is:

lea

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

'land' is the definition.
(I've seen this before)

'grassy piece of cleared' is the wordplay.
'LEA' is hidden within the letters.
But, I am not sure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for lea that I've seen before include "Grazing land" , "grazing area" , "'The lowing herd wind slowly o'er the . . .'" , "Poetically, a piece of meadow or pasture" , "Meadowland" .)

I've seen this clue in the Evening Standard.

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