You shouldn't have eg Yankees bagging our seats (9)

I believe the answer is:

tabourets

'seats' is the definition.
(tabouret is a kind of seat)

'you shouldn't have eg yankees bagging our' is the wordplay.
'you shouldn't have' becomes 'ta' (both can mean 'thank you').
'eg yankees' becomes 'bets' (Yankee is a type of bet).
'bagging' indicates putting letters inside (I've seen this in other clues).
'bets' enclosing 'our' is 'bourets'.
'ta'+'bourets'='TABOURETS'

I've seen this clue in The Guardian.

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