Holiday centre providing cover (3)
I believe the answer is:
lid
'cover' is the definition.
(lid is a kind of cover)
'holiday centre providing' is the wordplay.
'providing' says the answer is hidden in the clue.
'LID' is hidden in the letters of 'holiday centre'.
(Other definitions for lid that I've seen before include "Hat" , "Top crust of pie" , "Hinged or removable cover as for bottle" , "Removable cover of a container" , "Kind of cover, may be hinged" .)