Got down to making a proposal (7)
'got down' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for knelt that I've seen before include "Rested on the knees" , "Rested on bent legs" , "... for which one might have done this" , "Got down (to propose)" , "Rested on a bent leg" .)
'got' is the definition.
The answer and definition can be both to do with contact as well as being past participle verbs.
Maybe there's an association between them I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Another definition for kneeled that I've seen is " Got down to pray".)