Clear field? (3)
I believe the answer is:
lea
'field?' is the definition.
(lea can mean a meadow or field of grass)
'clear' is the wordplay.
'LEA' is hidden within the letters.
But, I am not sure how this is indicated.
Can you help me to learn more?
(Other definitions for lea that I've seen before include "Pasture, London river" , "authority for teachers" , "Open grassy land; river" , "Grazing land" , "Poetically, a piece of meadow or pasture" .)