Show embarrassment (6)
'show embarrassment' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for redden that I've seen before include "Flush, become embarrassed" , "Reveal embarrassment in colourful way" , "Blush or become flushed" , "Give visible sign of embarrassment" , "Group of states under one head" .)
'show embarrassment' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for blush that I've seen before include "Turn red, in embarrassment or shame" , "Go red" , "reddish tinge" , "Redden (in the face)" , "Redden in shame or modesty" .)