Composer has temperature following short vacation (5)
I believe the answer is:
holst
'composer' is the definition.
(Gustav Holst)
'temperature following short vacation' is the wordplay.
'temperature' becomes 't' (abbreviation).
'following' means one lot of letters go next to another.
'short vacation' becomes 'hols' (I've seen this before. I am not sure about the 'short' bit.**).
't' after 'hols' is 'HOLST'.
'has' acts as a link.
Can you help me to learn more?
(Other definitions for holst that I've seen before include "He scored" , "British composer, 1874-1934" , "Composer of The Planets, d. 1934" , "musical writer" , "Gustav - (The Planets)" .)