Where one can tie up in low fashion (7)
I believe the answer is:
moorage
'where one can tie up' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'low fashion' is the wordplay.
'low' becomes 'moo' (both can mean to make a cow noise).
'fashion' becomes 'rage' (something all the rage is fashionable).
'moo'+'rage'='MOORAGE'
'in' is the link.
Can you help me to learn more?
(Other definitions for moorage that I've seen before include "Berthing fee" , "Charge for leaving boat" , "Place to fasten" , "The price for stopping" , "Anchorage N or charge for using it!" .)