Drive forward, with no drawback, at half pace (5)

I believe the answer is:

force

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'drive' is the definition.
(I know that drive can be written as force)

'forward with no drawback at half pace' is the wordplay.
'forward with no drawback at' becomes 'for' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'half' suggests halving the letters.
'pace' halved is 'ce'.
'for'+'ce'='FORCE'

Can you help me to learn more?

(Other definitions for force that I've seen before include "Muscle" , "Compel through superior strength" , "Physical strength" , "Power; army" , "Body of e.g. police" .)

I've seen this clue in the Evening Standard.

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