First corps arm on the way up (5)
I believe the answer is:
climb
'way up' is the definition.
I can't judge whether this defines the answer.
'first corps arm on' is the wordplay.
'first corps' becomes 'c' (1st letter of 'corps').
'arm' becomes 'limb' (I've seen this in another clue).
'on' is a charade indicator (letters next to each other).
'c'+'limb'='CLIMB'
'the' is the link.
Can you help me to learn more?
(Other definitions for climb that I've seen before include "Walk up" , "Rise, mount" , "Scale or clamber" , "Rise to a higher level" , "Go up - scale" .)