Drive to get support, a bit of help (6)
I believe the answer is:
propel
'drive' is the definition.
(I know that drive is a more specific form of hit)
'get support a bit of help' is the wordplay.
'get' means one lot of letters go next to another.
'support' becomes 'prop' (prop up can mean to support).
'a bit of help' becomes 'el' (I can't explain this - if you can you should believe this answer much more).
'prop' next to 'el' is 'PROPEL'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for propel that I've seen before include "Push forwards" , "Derive of push forward" , "Cause to move forward with force" , "Drive or push forward as with oars" , "Launch" .)