Meadow in which cattle are fattened (3)

I believe the answer is:

lea

'meadow' is the definition.
(a lea is a grassy area)

'in which cattle are fattened' is the wordplay.
'in which' indicates a hidden word.
'LEA' is hidden within 'cattle are fattened'.

(Other definitions for lea that I've seen before include "Field" , "'The lowing herd wind slowly o'er the . . .'" , "Pasture, London river" , "River of east London" , "Meadowland" .)

I've seen this clue in The Globe and Mail.

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