Composer taking short breaks before the end of August (5)
I believe the answer is:
'composer' is the definition.
'taking short breaks before the end of august?' is the wordplay.
'taking short breaks' becomes 'hols' (I am not sure about this - if you are sure you should believe this answer much more).
'before' is a charade indicator (letters next to each other).
'the end of' suggests the final letters.
The last letter of 'august' is 't'.
Can you help me to learn more?
(Other definitions for holst that I've seen before include "He scored" , "Scorer" , "Gustav --, English composer" , "musical writer" , "British composer, 1874-1934" .)