Orchestral player promptly in support, taking little time (10)
I believe the answer is:
bassoonist
'orchestral player' is the definition.
'bassoonist' can be an answer for 'player' (bassoonist is a kind of player). I am not sure about the 'orchestral' bit.
'promptly in support taking little time' is the wordplay.
'promptly' becomes 'soon' (I've seen this in another clue).
'in support' becomes 'basis' (I've seen this before. I am not sure about the 'in' bit.).
'taking' is an insertion indicator.
'little time' becomes 't' (abbreviation for time).
'soon' going within 'basis' is 'bassoonis'.
'bassoonis'+'t'='BASSOONIST'
Can you help me to learn more?
(Other definitions for bassoonist that I've seen before include "Woodwind player" , "Musician" .)