Embarrassed-looking Conservative in left-wing stronghold once (3,6)
I believe the answer is:
red square
'left-wing stronghold once' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'embarrassed-looking conservative' is the wordplay.
'embarrassed-looking' becomes 'red' (I've seen this in another clue).
'conservative' becomes 'square' (I've seen this before).
'red'+'square'='RED SQUARE'
'in' is the link.
Can you help me to learn more?
(Other definitions for red square that I've seen before include "Heart of capital" , "Tourist attraction of Moscow" , "Moscow area" , "Moscow landmark" , "Central scarlet rectangle in Moscow" .)