Scope in arrangement (5)
I believe the answer is:
range
'scope' is the definition.
(synonyms)
'in arrangement' is the wordplay.
'in' says the answer is hidden in the clue.
'RANGE' can be found hidden inside 'arrangement'.
(Other definitions for range that I've seen before include "Oven" , "Cut; cultivated plant" , "Scope (for target practice?)" , "Stove; variety" , "specific category" .)