Related Clues:

• Fish in a crowded-subway metaphor
• Piscine symbol of overcrowdedness
• Tightly packed pilchard
• Subway rider during rush hour, metaphorically
• Fish in cans
• Certain rush hour commuter, metaphorically
• A diner's small fish
• Aridness of small fish
• Small fish, usually canned
• Light sort of fish for the tin
• When artists turn up there's too little fish to feed them on
• Little fish in a tin
• A diner's ordered fish
• One's tight, well-oiled
• A diner's battered fish