For example, potato container brought to queen (5)
I believe the answer is:
tuber
'for example potato' is the definition.
(potato is an example of a tuber)
'container brought to queen' is the wordplay.
I cannot really see how this works, but
'container' could be 'tub' (tub is a kind of container) and 'tub' is found in the answer.
'queen' could be 'er' (abbreviation for Elizabeth Regina) and 'er' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tuber that I've seen before include "Brute or a potato plant" , "Brute (anag)" , "King Edward maybe" , "Underground stem, root" , "Fleshy underground stem (eg of the potato)" .)