Famous lunatic hated tram travel (3,6)
I believe the answer is:
mad hatter
'famous lunatic' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'hated tram travel' is the wordplay.
'travel' indicates anagramming the letters (I've seen 'travelling' mean this).
'hated'+'tram'='hatedtram'
'hatedtram' with letters rearranged gives 'MAD HATTER'.
Can you help me to learn more?
(Other definitions for mad hatter that I've seen before include "Bizarre party host" , "one forever taking tea" , "Tea drinker" , "Eccentric" , "Participant in the 16 in 3,8" .)