Getting up to take kitchen's top object, going out on a limb (7,2)

'going out on a limb' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'getting up to take kitchen's top object' is the wordplay.
'getting up' becomes 'rising' ('rise' can be a synonym of 'get up').
'to take' indicates putting letters inside (inserted letters are taken in).
'kitchen's top' becomes 'k' (I am not sure about this - if you are sure you should believe this answer much more).
'object' becomes 'it' (pronoun for an inanimate object).
'rising' placed around 'k' is 'risking'.
'risking'+'it'='RISKING IT'

Can you help me to learn more?