Climb; kettle deposit (5)
I believe the answer is:
scale
I believe this is a double definition.
'climb' is the first definition.
(I know that scale is a more specific form of the action climb)
'kettle deposit' is the second definition.
(I've seen this before)
(Other definitions for scale that I've seen before include "Relative extent as of laces" , "Measure" , "Part of fish/reptile skin" , "Size ratio; skin flake" , "Doh, re, me etc" .)