stringer
noun
[ ˈstrɪŋə ]
• a longitudinal structural piece in a framework, especially that of a ship or aircraft.
• a newspaper correspondent who is retained on a part-time basis to report on events in a particular place.
• "papers relied increasingly on locally based stringers and news agencies"
• a reserve sports player holding a specified position in an order of preference.
• "six of the team's 24 first-stringers are Canadian"
• a chain with hooks on which caught fish are strung.
• a stringboard.