If a defender moves away from a location during combat, does the attacker lose its attacker designation, and would cards that buff 'while it's an attacker' still work?

Ruling: The attacking unit retains its attacker designation even if the defender moves away from the location during combat. Cards that buff a unit "while it's an attacker" (like Cleave) will still apply.

Nuances:

• The attacker designation persists through the combat even when there is no longer a defender present at the location.