Was he shoved aboard? (6)
I believe the answer is:
bargee
'was he shoved aboard?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'he shoved aboard?' is the wordplay.
'he' becomes 'bar'.
'shoved aboard?' becomes 'gee' (I can't justify this - if you can you should believe this answer much more).
'bar'+'gee'='BARGEE'
Can you help me to learn more?
(Other definitions for bargee that I've seen before include "Lighterman" , "River/canal boat worker" , "boatman" , "Boat operator" , "Canal worker" .)