American on journey in times past (3)
I believe the answer is:
ago
'times past' is the definition.
(I've seen this in another clue)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for ago that I've seen before include "(Years) before the present time" , "Gone, past, since" , "Previously" , "Time past" , "In past times" .)