This is the 6128th most frequent Russian word.
стрела
Arrow.
In this sentence, 'стрела' refers to an arrow, which is its primary meaning.
Легендарный герой выпустил стрелу из лука.
The legendary hero shot an arrow from the bow.
Here, 'стрелы' means the clock hands, showing a secondary usage in context.
Часы на городской башне без стрел украшают площадь.
The clock on the city tower without hands adorns the square.
In this sentence, 'Стрела' is used metaphorically as a proper noun.