Though second-hand, well-made iron goes to first woman for a decent amount (1,4,3)
I believe the answer is:
a good few
'though second-hand well-made iron goes to first woman' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'a decent amount' is the wordplay.
'decent' becomes 'good' (I've seen this in another clue).
'amount' becomes 'few' (few is a kind of amount).
'a'+'good'+'few'='A GOOD FEW'
'for' is the link.
Can you help me to learn more?
(Another definition for a good few that I've seen is " Many".)