Make fast travel free (5)
I believe the answer is:
hitch
This might be a double definition.
'make fast' is the first definition.
(I've seen this before)
'travel free' is the second definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?
Can you help me to learn more?
(Other definitions for hitch that I've seen before include "Thumb (a lift)" , "Marry" , "Make fast" , "Unexpected problem" , "Jerk" .)