Get string from one of a pair of identical eggheads (5)
I believe the answer is:
twine
'get string from one of a pair' is the definition.
I can't judge whether this definition defines the answer.
'identical eggheads' is the wordplay.
'identical' becomes 'twin' (I've seen this in another clue).
'eggheads' becomes 'e' (this could be a standard abbreviation of which I'm unaware).
'twin'+'e'='TWINE'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for twine that I've seen before include "String of twisted fibres" , "weaving" , "Stout string" , "wind" , "Twisted cord" .)