Obvious; list of passengers (8)
I believe the answer is:
manifest
This clue is a double definition.
'obvious' is the first definition.
(similar in meaning)
'list of passengers' is the second definition.
(I've seen this in another clue)
(Other definitions for manifest that I've seen before include "Obvious to the eye" , "Fine mast (anag.)" , "Document listing a ship's contents for customs purposes" , "Display" , "Ship's document; plain" .)