Frequently visit topless relative (4)

I believe the answer is:
aunt
'frequently visit' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'topless relative' is the wordplay.
'topless' means to remove the first letter.
'relative' becomes 'naunt' (I have seen 'old relative' mean 'naunt' so perhaps 'relative' could also mean 'naunt').
'naunt' with its initial letter taken away is 'AUNT'.
Can you help me to learn more?
(Other definitions for aunt that I've seen before include "Tuna for the odd relative" , "Put up with" , "Family member" , "Family relative" , "Close relative" .)
