Pull a number backwards and forwards (6)
I believe the answer is:
onward
'forwards' is the definition.
(thesaurus)
'pull a number backwards' is the wordplay.
'pull' becomes 'draw' (drawing is a kind of pulling).
'a number' becomes 'no.' (abbreviation).
'backwards' is a reversal indicator.
'draw'+'no'='drawno'
'drawno' in reverse letter order is 'ONWARD'.
'and' is the link.
(Other definitions for onward that I've seen before include "Advance like Christian soldiers" , "Direction to be taken by Christian soldiers?" , "Going on, advancing" , "Advanced" , "With advancing motion" .)