Missing leader censured dancing bears (7)
I believe the answer is:
endures
'bears' is the definition.
(to bear something is to endure or tolerate it)
'missing leader censured dancing' is the wordplay.
'missing leader' means to remove the first letter (leader meaning lead letter).
'dancing' is an anagram indicator.
'censured' with its first letter taken away is 'ensured'.
'ensured' anagrammed gives 'ENDURES'.
(Other definitions for endures that I've seen before include "Bears" , "Suffers or lasts" , "Supports" , "Remains firm" , "Ensured (anag.)" .)