End of the new tram line (8)
I believe the answer is:
terminal
'end' is the definition.
(I know that end can be written as terminal)
'new tram line' is the wordplay.
'new' is an anagram indicator.
'tram'+'line'='tramline'
'tramline' anagrammed gives 'TERMINAL'.
'of the' is the link.
(Other definitions for terminal that I've seen before include "Electricity connection point" , "Final or fatal" , "At the end, final" , "Last, final" , "Final; connection point" .)