American cleans boxes Jack orders (7)
I believe the answer is:
adjusts
'orders' is the definition.
The definition and answer can be both related to change as well as being verbs in their -s form.
Perhaps you can see a link between them that I don't see?
'american cleans boxes jack' is the wordplay.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'cleans' becomes 'dusts' (dusting is a kind of cleaning).
'boxes' indicates putting letters inside (the outside letters must 'box' inside letters in).
'jack' becomes 'J' (playing card abbreviation).
'dusts' enclosing 'j' is 'djusts'.
'a'+'djusts'='ADJUSTS'
Can you help me to learn more?
(Other definitions for adjusts that I've seen before include "Alters to regulate" , "suits" .)