End of new tramline? (8)
I believe the answer is:
terminal
'end' is the definition.
(I've seen this in another clue)
'new tramline?' is the wordplay.
'new' is an anagram indicator.
'tramline' with letters rearranged gives 'TERMINAL'.
'of' acts as a link.
(Other definitions for terminal that I've seen before include "Ending; airport building" , "At the end, final" , "Deadly" , "Arrivals or departures building" , "confirming departure" .)