Use it for a musical sequence (5)
I believe the answer is:
suite
'sequence' is the definition.
(thesaurus)
'use it for a musical' is the wordplay.
'use it' anagrams to 'SUITE'.
But, I'm not sure how the anagram is indicated.
Can you help me to learn more?
(Other definitions for suite that I've seen before include "Set, e.g. of furniture" , "music collection" , "Compensate for (faults)" , "Extensive accommodation" , "Musical composition" .)