Old appliance from the first victory, objection overturned (4-3)
I believe the answer is:
twin-tub
'old appliance' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'the first victory objection overturned' is the wordplay.
'the first' becomes 't' (1st letter of 'the').
'victory' becomes 'win' (a win is a victory).
'objection' becomes 'but' (as in 'no ifs, no buts').
'overturned' is a reversal indicator.
'but' back-to-front is 'tub'.
't'+'win'+'tub'='TWIN-TUB'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for twin-tub that I've seen before include "Dual washing-machine" , "Washing machine with two revolving drums" , "Type of washing machine" .)