Scold for putting a sign outside (6)
I believe the answer is:
virago
'scold' is the definition.
(virago is a kind of scold)
'putting a sign outside' is the wordplay.
I cannot quite see how this works, but
'a' is present in the answer.
'sign' could be 'virgo' (Virgo is an example) and 'virgo' is present in the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'for' acts as a link.
Can you help me to learn more?
(Other definitions for virago that I've seen before include "Scold" , "noisy woman" , "Formidable female" , "Termagant" , "Dominating woman" .)