cruel duel, low blow, lowdown showdown
Cruel duel.
slight fight
fall brawl
ring king, fight knight
fight knight
Fight night is a hink-pink. The clue for that might be pugilistic evening.
mean queen
Star Car.
grouch couch
Mean green.
pale tale
A "hink pink" is a word game where two rhyming words are given as clues to guess a compound word. "Heavy brain" could be a clue for the hink pink "smart cart."