Climb awkwardly missing large raised curve (6)
I believe the answer is:
camber
'raised curve' is the definition.
'camber' can be an answer for 'curve' (I have seen 'Curve of road ' mean 'camber' so perhaps 'curve' could also mean 'camber'). I am not sure about the 'raised' bit.
'climb awkwardly missing large' is the wordplay.
'climb awkwardly' becomes 'clamber' (I've seen this before).
'missing' indicates named letters should be taken away.
'large' becomes 'L' (eg in clothes sizes).
'clamber' with 'l' removed is 'CAMBER'.
Can you help me to learn more?
(Other definitions for camber that I've seen before include "Curvature of aircraft wing" , "Slight convexity, like the surface of a road" , "Road surface curvature" , "Slight upward curve in road, wing etc" , "Slope on road surface" .)