Lame sort of dinner, say (4)
I believe the answer is:
meal
'dinner say' is the definition.
(dinner is a kind of meal)
'lame sort' is the wordplay.
'sort' indicates an anagram.
'lame' is an anagram of 'MEAL'.
'of' is the link.
(Other definitions for meal that I've seen before include "Eg, dinner or tea" , "Breakfast, dinner or tea" , "Eg, breakfast" , "Ground grain or pulses" , "Lame (anag.)" .)