Dancing rumba without a singer for protection (8)
I believe the answer is:
umbrella
'protection' is the definition.
(umbrella is a kind of protection)
'dancing rumba without a singer' is the wordplay.
'dancing' indicates an anagram.
'without' suggests deleting specific letters.
'singer' becomes 'ella' (Ella Fitzgerald).
'rumba' with 'a' taken away is 'rumb'.
'rumb' anagrammed gives 'umbr'.
'umbr'+'ella'='UMBRELLA'
'for' acts as a link.
(Other definitions for umbrella that I've seen before include "cover for the British weather?" , "Aegis" , "Gamp" , "What may go up when the rain comes down" , "Comprehensive" .)