Setter being cryptic, in a way (6)
I believe the answer is:
street
'way' is the definition.
(I know that way can be written as street)
'setter being cryptic' is the wordplay.
'being cryptic' indicates anagramming the letters (a cryptic or obscure order of the letters).
'setter' is an anagram of 'STREET'.
'in a' acts as a link.
(Other definitions for street that I've seen before include "Road lined with houses" , "See 1 Down" , "Tester in public road" , "Tester (anag.)" , "Public road in a conurbation" .)