No nonsense seaside entertainer on here? (4)
I believe the answer is:
pier
This clue might be a double definition.
'no nonsense' is the first definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'seaside entertainer on here?' is the second definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
Can you help me to learn more?
(Other definitions for pier that I've seen before include "Break-water or landing stage" , "Part of airport terminal; breakwater" , "Wharf jutting out into water" , "Structure with a deck, built over water" , "sight at the seaside" .)