1) Berth 2) Billet 3) Office 4) Place 5) Position 6) Post 7) Situation 8) Skill at Augusta 9) Spot 10) The position of master 11) The skill of a master Found on https://www.crosswordclues.com/clue/mastership
• (n.) The state or office of a master. • (n.) Mastery; dominion; superior skill; superiority. • (n.) Chief work; masterpiece. • (n.) An ironical title of respect. Found on http://thinkexist.com/dictionary/meaning/mastership/
Mas'ter·ship noun 1. The state or office of a master. 2. Mastery; dominion; superior skill; superiority. « Where noble youths for mastership should strive.» Driden. 3. Chief work; masterpiece. [ Obsolete] Dryden. 4. An ironical t... Found on http://www.encyclo.co.uk/webster/M/30