Having no cover led Yank astray (7)
I believe the answer is:
nakedly
'having no cover' is the definition.
I can't judge whether this definition defines the answer.
'led yank astray' is the wordplay.
'astray' indicates anagramming the letters.
'led'+'yank'='ledyank'
'ledyank' is an anagram of 'NAKEDLY'.
Can you help me to learn more?
(Other definitions for nakedly that I've seen before include "Key land (anag) - in a blatant manner" , "(Done) without shame, or clothes!" , "In an unclothed manner" , "in blatant fashion" , "In nude manner" .)