Time traveller going backward and forward (4)
I believe the answer is:
pert
'forward' is the definition.
(I've seen this before)
'time traveller going backward' is the wordplay.
'time' becomes 't' (abbreviation).
'traveller going' becomes 'rep' (I can't justify this - if you can you should believe this answer much more).
'backward' says the letters should be written in reverse.
't'+'rep'='trep'
'trep' in reverse letter order is 'PERT'.
'and' is the link.
Can you help me to learn more?
(Other definitions for pert that I've seen before include "Saucy and chipper" , "Saucy, maybe brash" , "Impudent, cheeky" , "Cheeky, saucy" , "Saucy and impudent" .)