Dog finds tongue by the evening sun (7,6)
I believe the answer is:
english setter
'dog' is the definition.
(English setter is an example)
'tongue by the evening sun' is the wordplay.
'tongue' becomes 'English' (tongue can mean a language).
'by' is a charade indicator (letters next to each other).
'the evening sun' becomes 'setter' (the sun sets in the evening).
'english'+'setter'='ENGLISH SETTER'
'finds' is the link.
(Other definitions for english setter that I've seen before include "One in white coat spotted" , "Breed of dog" , "canine" , "man responsible for language exam" , "Dog -- serenest light (anag)" .)