Cleans up the childish mistakes for Regina in flowing saree (6)
I believe the answer is:
eraser
'cleans up the childish mistakes' is the definition.
I can't tell whether this defines the answer.
'regina in flowing saree' is the wordplay.
'regina' becomes 'R' (common abbreviation e.g. ER=Elizabeth Regina).
'in' indicates putting letters inside.
'flowing' indicates an anagram.
'saree' with letters rearranged gives 'easer'.
'r' put into 'easer' is 'ERASER'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for eraser that I've seen before include "A student's rubber, or the one who uses it" , "device for deleting things" , "correction device" , "(Pencil, ink) rubber" , "One who removed" .)