1) Diligent worker 2) Gripping tool 3) Half a tool 4) Hard worker 5) One who works at a trade 6) One with a trade 7) One working at a trade 8) Plyer 9) Someone who plies a trade 10) Steady worker 11) Tradesperson 12) Wielder 13) Worker 14) Worker at a trade 15) Yarn twister 1) Plyer 
[n] - someone who plies a trade
plyer noun someone who plies a trade