Tramline surprisingly ending here (8)
I believe the answer is:
terminal
'ending here' is the definition.
(eg the end of a railway)
'tramline surprisingly' is the wordplay.
'surprisingly' is an anagram indicator (a surprising ordering of the letters).
'tramline' anagrammed gives 'TERMINAL'.
(Other definitions for terminal that I've seen before include "End point of line - section of airport" , "End of journey for tramline" , "Concluding, final" , "Situated at the end" , "Passenger building" .)