King and Queen welcomed in niche bread shop (6)
I believe the answer is:
bakery
'shop' is the definition.
'king and queen welcomed in' is the wordplay.
'king and queen' becomes 'ker' (I've seen this in other clues).
'welcomed' becomes 'bay' (I am not sure about this - if you are sure you should believe this answer much more).
'in' indicates putting letters inside.
'ker' placed within 'bay' is 'BAKERY'.
'niche bread' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for bakery that I've seen before include "Bread and cakes shop" , "Shop with bread, etc" , "Bread and cakes are produced here" , "Source of bread" , "Bread-shop" .)