Evil doctor going forwards and backwards in time (4)
I believe the answer is:
noon
'backwards in time' is the definition.
'noon' can be an answer for 'time' (I've seen this before). I'm not sure about the 'backwards in' bit.
'evil doctor going forwards' is the wordplay.
'evil doctor' becomes 'No' (Dr No, James Bond villain).
'going forwards' becomes 'on' (synonyms. I am not sure about the 'going' bit.).
'no'+'on'='NOON'
'and' is the link.
Can you help me to learn more?
(Other definitions for noon that I've seen before include "A moment of time" , "12 pm" , "12 o'clock" , "High time of day?" , "when PM starts" .)