Farm plot destroyed flat surface (8)

I believe the answer is:

platform

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'flat surface' is the definition.
'platform' can be an answer for 'surface' (platform is a kind of surface). I am unsure of the 'flat' bit.

'farm plot destroyed' is the wordplay.
'destroyed' is an anagram indicator.
'farm'+'plot'='farmplot'
'farmplot' anagrammed gives 'PLATFORM'.

Can you help me to learn more?

(Other definitions for platform that I've seen before include "Raised floor" , "Oil rig < level being raised" , "Stage, podium" , "Part of railway station" , "Raised level surface" .)

I've seen this clue in The Sun.

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