Copied design of underwear chafing after two seconds (5,7)
I believe the answer is:
brass rubbing
'copied design' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives can occasionally mean the same thing.
'underwear chafing after two seconds' is the wordplay.
'underwear' becomes 'bra' (bra is a type of undergarment).
'chafing' becomes 'rubbing' ('rub' can be a synonym of 'chafe').
'after' means one lot of letters go next to another.
'two seconds' becomes 'ss' (abbreviation for second times two).
'rubbing' after 'ss' is 'ssrubbing'.
'bra'+'ssrubbing'='BRASS RUBBING'
'of' is the link.
Can you help me to learn more?
(Another definition for brass rubbing that I've seen is " Reproduction of commemorative plaques on paper".)