Crossword Genius

RAF tutors bombing surface (9)

Ross

I believe the answer is:

astroturf

'surface' is the definition.
(artificial grass surface)

'raf tutors bombing' is the wordplay.
'bombing' is an anagram indicator.
'raf'+'tutors'='raftutors'
'raftutors' anagrammed gives 'ASTROTURF'.

(Other definitions for astroturf that I've seen before include "Artificial grass" , "play area possibly" , "substitute on pitch?" .)

I've seen this clue in The Times.
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