Fred wrangling with Colin: I’m all ears! (9)

I believe the answer is:

cornfield

'i'm all ears' is the definition.
(a cornfield is made up of ears of corn)

'fred wrangling with colin' is the wordplay.
'wrangling with' is an anagram indicator (wrangle can mean to round up and organise).
'fred' anagrammed with 'colin' gives 'CORNFIELD'.

(Another definition for cornfield that I've seen is " Lover and lass here in spring".)

I've seen this clue in The Times.

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