Girls having the same name as old Indian coppers (5)
I believe the answer is:
annas
'old indian coppers' is the definition.
Although both the answer and definition are plural nouns, I don't see how one could define the other.
'girls having the same name as' is the wordplay.
I cannot really see how this works, but
'name' could be 'ann' and 'ann' is present in the answer.
'as' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for annas that I've seen before include "Old Indian coins" , "Former Indian coins" , "High priest" .)