Like hikers taking fellow as well towards the top (2,4)
I believe the answer is:
on foot
'like' is the definition.
Both the answer and definition are adjectives. Maybe you can see a link between them that I don't see?
'hikers taking fellow as well towards the top' is the wordplay.
I cannot really understand how this works, but
'taking' could be 'on' (eg one taking drugs is 'on' drugs) and 'on' is found within the answer.
'fellow' could be 'f' (abbreviation - of a society etc.) and 'f' is found within the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
The remaining letters 'oo' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for on foot that I've seen before include "Walking or running" , "Going as pedestrian" , "By shanks's pony" , "where the corn's growing?" .)