Sentimental upright type given endless credit (8)
I believe the answer is:
romantic
'sentimental' is the definition.
(thesaurus)
'upright type given endless credit' is the wordplay.
'upright type' becomes 'roman' (I've seen this before).
'given' says to put letters next to each other.
'endless credit' becomes 'tic' (I've seen this in other clues).
'roman'+'tic'='ROMANTIC'
(Other definitions for romantic that I've seen before include "Amorous (but not practical?)" , "Having an idealised view of reality" , "Amorous, showing loving feeling" , "Coin mart (anag.)" , "Such a novel deals with love" .)