Say yes, the son chucked money around (7)
I believe the answer is:
consent
'say yes' is the definition.
(I've seen this in another clue)
'son chucked money around' is the wordplay.
'chucked' is an anagram indicator (letters chucked around).
'money' becomes 'cent' (eg denomination of dollars).
'around' indicates putting letters inside.
'son' is an anagram of 'ons'.
'ons' inserted within 'cent' is 'CONSENT'.
'the' acts as a link.
(Other definitions for consent that I've seen before include "Agree or comply" , "Agree (to do something)" , "Permission, agree" , "Give permission for something" , "Give approval" .)