Stage naked ramble? It's allowed (5)
I believe the answer is:
legal
'allowed' is the definition.
(I've seen this in another clue)
'stage naked ramble?' is the wordplay.
'stage' becomes 'leg' (a leg is a stage of a competition).
'naked ramble?' becomes 'al' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'leg'+'al'='LEGAL'
'it's' acts as a link.
Can you help me to learn more?
(Other definitions for legal that I've seen before include "Rightful" , "It's acceptable" , "In accordance with statute" , "OK as an immigrant?" , "Conforming with the law" .)