Group transporting tonne (5)
I believe the answer is:
nonet
'group' is the definition.
(group of nine musicians)
'transporting tonne' is the wordplay.
'tonne' can be anagrammed to 'NONET'.
However, I am not clear how the anagram is indicated.
Can you help me to learn more?
(Other definitions for nonet that I've seen before include "Tonne (anag.); music for a group" , "Tenon (anag.)" , "group composition" , "Band of nine?" , "small band" .)