Matching metal in cargo with price adjusted (13)
I believe the answer is:
reciprocating
'matching metal' is the definition.
'reciprocating' can be an answer for 'matching' (to reciprocate something is to match or equal it). I'm unsure of the 'metal' bit.
'in cargo with price adjusted' is the wordplay.
I cannot quite understand how this works, but
'in' is present in the answer.
an anagram of 'price' is 'recip' which is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for reciprocating that I've seen is " giving something back".)