Stop weaving cold poem into part of address (8)
I believe the answer is:
postcode
'part of address' is the definition.
('postcode' is part of 'address')
'stop weaving cold poem' is the wordplay.
'weaving' indicates anagramming the letters (letters weaved together differently).
'cold' becomes 'c' (abbreviation, eg on taps).
'poem' becomes 'ode' (ode is a type of poem).
'stop' anagrammed gives 'post'.
'post'+'c'+'ode'='POSTCODE'
'into' is the link.
(Other definitions for postcode that I've seen before include "End of address" , "Part of address to aid sorting" , "Mail sorting help" , "Indication of area in address" , "Letter sorting device (or kind of modern lottery?)" .)