Wines oddly provide strength (5)
I believe the answer is:
sinew
'strength' is the definition.
(sinew is a kind of strength)
'wines oddly' is the wordplay.
'oddly' is an anagram indicator.
'wines' is an anagram of 'SINEW'.
'provide' is the link.
(Other definitions for sinew that I've seen before include "Inelastic tissue" , "power source" , "Muscular strength" , "Cord of tissue connecting muscle to bone" , "Tendon, for example" .)