Ten dined out as planned (8)
I believe the answer is:
intended
'planned' is the definition.
(intending is a kind of planning)
'ten dined out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'ten'+'dined'='tendined'
'tendined' is an anagram of 'INTENDED'.
'as' is the link.
(Other definitions for intended that I've seen before include "no mistake!" , "Fiance (e) - on purpose" , "Informally one's fiance or fiancee" , "One about to join union" , "Meant - fiancee" .)