Love, I talk a lot about big beasts (7)

I believe the answer is:

nilgais

'big beasts' is the definition.
(nilgai is a type of large antelope)

'love i talk a lot about' is the wordplay.
'love' becomes 'nil' (love and nil mean zero in cricket and football).
'talk a lot' becomes 'gas' (gas can mean to talk at length).
'about' is an insertion indicator.
'i' going within 'gas' is 'gais'.
'nil'+'gais'='NILGAIS'

I've seen this clue in The Guardian.

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