Tramp turned red meeting priest at court (8)
I believe the answer is:
derelict
'tramp' is the definition.
(I've seen this before)
'turned red meeting priest at court' is the wordplay.
'turned' is a reversal indicator.
'meeting' means one lot of letters go next to another.
'priest' becomes 'eli' (biblical figure).
'at' says to put letters next to each other.
'court' becomes 'ct' (abbreviation used in road names).
'red' reversed gives 'der'.
'der'+'eli'+'ct'='DERELICT'
(Other definitions for derelict that I've seen before include "Abandoned and falling into ruin" , "Deserted - vagrant" , "Disused, neglected" , "Down-and-out" , "Abandoned, neglected" .)