First couple from school walk and climb roughly (8)
I believe the answer is:
scramble
'climb roughly' is the definition.
'scramble' can be an answer for 'climb' (scrambling is a kind of climbing). I am not sure about the 'roughly' bit.
'first couple from school walk' is the wordplay.
'first' says to put letters next to each other.
'couple from school' becomes 'scr' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'walk' becomes 'amble' (ambling is a kind of walking).
'scr'+'amble' is 'SCRAMBLE'.
'and' is the link.
Can you help me to learn more?
(Other definitions for scramble that I've seen before include "Disordered mixture" , "Make hasty moves" , "motocross" , "Motorbike rally" , "Climb upwards on motorcyle" .)