Sensible person retails another way (7)
I believe the answer is:
realist
'sensible' is the definition.
(thesaurus)
'retails another way' is the wordplay.
'another way' indicates anagramming the letters.
'retails' anagrammed gives 'REALIST'.
'person' acts as a link.
This may not be right. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for realist that I've seen before include "One's practically inclined" , "Retails like practical person" , "One without illusions" , "Sensible man" , "no Walter Mitty?" .)