Sleeveless coat provided, thanks to poet (6)
I believe the answer is:
tabard
'sleeveless coat' is the definition.
'tabard' can be an answer for 'coat' (I've seen this before). I am not certain of the 'sleeveless' bit.
'thanks to poet' is the wordplay.
'thanks' becomes 'ta' (UK informal version of 'thank you').
'to poet' becomes 'bard' (bard is a kind of poet).
'ta'+'bard'='TABARD'
'provided' is the link.
Can you help me to learn more?
(Other definitions for tabard that I've seen before include "Jerkin; heraldic coat" , "Herald's garment" , "Short tunic, open at the sides" , "Jacket worn by a herald" , "Short sleeveless tunic" .)