Scruffy lot ate in inn as planned (11)
I believe the answer is:
intentional
'planned' is the definition.
(thesaurus)
'scruffy lot ate in inn' is the wordplay.
'scruffy' indicates anagramming the letters.
'lot'+'ate'+'in'+'inn'='lotateininn'
'lotateininn' with letters rearranged gives 'INTENTIONAL'.
'as' is the link.
(Other definitions for intentional that I've seen before include "Done on purpose" , "Deliberate" .)