Shopkeepers rolling over beds and chests in Ayr (9)
I believe the answer is:
stockists
'shopkeepers' is the definition.
(people stocking certain items)
'rolling over beds and chests in ayr' is the wordplay.
'rolling over' shows that the letters should be reversed in order.
'beds' becomes 'cots' (cot is a kind of bed).
'and' is a charade indicator (letters next to each other).
'chests in ayr' becomes 'kists' ('kist' is a Scottish term for a type of chest).
'cots' in reverse letter order is 'stoc'.
'stoc'+'kists'='STOCKISTS'
(Another definition for stockists that I've seen is " Retailers carrying a particular item".)