Hemp wound up counterpart with tackle on the right wing (5)
I believe the answer is:
twine
'hemp wound up' is the definition.
I can't judge whether this defines the answer.
'counterpart with tackle on the right wing' is the wordplay.
'counterpart' becomes 'twin' (synonyms).
'with' says to put letters next to each other.
'tackle on the right wing' becomes 'e' (I can't justify this - if you can you should give a lot more credence to this answer).
'twin'+'e'='TWINE'
Can you help me to learn more?
(Other definitions for twine that I've seen before include "String, cord" , "can get into knots" , "Curl; string" , "Knot" , "Stout string" .)