Oxford Blue depicted as Roman (7)
I believe the answer is:
oarsman
'oxford blue' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?
'depicted as roman' is the wordplay.
'depicted' is an anagram indicator (letters presented or depicted in a new form).
'as'+'roman'='asroman'
'asroman' with letters rearranged gives 'OARSMAN'.
Can you help me to learn more?
(Other definitions for oarsman that I've seen before include "Craft worker" , "He rows" , "Member of rowing crew" , "A ransom (anag)" , "One in a row" .)