Related Clues:

• Cardinal's colour
• Vin rouge, like claret
• Primary colour
• The colour of communism
• The colour of blood
• Scarlet or vermilion
• See it and become angry
• A colourful communist
• 'If you see it, perhaps you're angry (3)'
• Nothing is needed to make you repeat this
• This is cover for you to be able to find it once more
• May be assumed to be taken as it sounds a shade like this
• Ha! That's all that's needed to make 30 across
• Nothing could make one do this all over again
• It makes one a shade cross to be so charitable