Crossword Genius

Press one's years in a period BC (4,3)

Ross

I believe the answer is:

iron age

I'm a little stuck... Click here to teach me more about this clue!

'a period bc' is the definition.
The definition and answer can be both related to time as well as being singular nouns.
Maybe you can see a link between them that I can't see?

'press one's years' is the wordplay.
'press' becomes 'iron' (ironing is a kind of pressing).
'one's years' becomes 'age'.
'iron'+'age'='IRON AGE'

'in' is the link.

Can you help me to learn more?

(Other definitions for iron age that I've seen before include "historical period" , "Archaeological period" , "A region (anag) - period long ago" , "Period from about 1100 BC" , "Time of the spread of metal weapons, tools etc" .)

I've seen this clue in the Sydney Morning Herald.
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