Lacking a dining facility is conspicuous (7)
I believe the answer is:
notable
'conspicuous' is the definition.
(thesaurus)
'lacking a dining facility' is the wordplay.
'lacking' becomes 'no' (eg lacking money means with no money).
'a dining facility' becomes 'table' (I am not sure about this - if you are sure you should believe this answer much more).
'no'+'table'='NOTABLE'
'is' is the link.
Can you help me to learn more?
(Other definitions for notable that I've seen before include "Celebrated" , "Remarkable, worthy of comment" , "well known" , "Worthy of attention, significant" , "VIP" .)