Reactionary did move instrument around (7)
I believe the answer is:
luddite
'reactionary' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'did move instrument around' is the wordplay.
'move' is an anagram indicator.
'instrument' becomes 'lute' (lute is a kind of instrument).
'around' indicates putting letters inside.
'did' anagrammed gives 'ddi'.
'ddi' going within 'lute' is 'LUDDITE'.
Can you help me to learn more?
(Other definitions for luddite that I've seen before include "Opponent of new technology" , "Person who opposes the introduction of new technology" , "One opposed to new technology" , "Destroyer of machines" , "Diluted (anag) - opponent of technological innovation" .)