Trade essential for others - lockmakers especially (3,8)
I believe the answer is:
key industry
'others lockmakers especially' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'trade essential' is the wordplay.
I cannot really understand how this works, but
'trade' could be 'industry' (I've seen this before) and 'industry' is found in the answer.
'essential' could be 'key' (key can mean essential or important) and 'key' is located in the answer.
No letters remain.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
I've seen this clue in The Globe and Mail.
Want a hint initially instead of a full solution?
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