Visitors walk all over me! (7)
I believe the answer is:
doormat
This could be a double definition.
'visitors walk' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'all over me' is the second definition.
The definition suggests a singular noun which matches the answer.
Can you help me to learn more?
(Other definitions for doormat that I've seen before include "Submissive person (colloq.)" , "Item for wiping shoes on" , "seen walking in?" , "Carpet protector or very submissive person" , "Wipe feet on this before entering" .)