ADJ

guardian
avenging
He liked to think of himself as an avenging angel fighting for justice
fallen
a book about anti-heroes and fallen angels

QUANT

choir, host
a whole host of angels

ADJ

absolute, little
Deborah's children are little angels
ministering
I could hardly see Lisa in the role of ministering angel

PHRASES

be an angel
Be an angel and make the tea, will you?
be no angel
I'm no angel, but I wouldn't dream of doing a thing like that