D defs.my
Entry 2 senses Webster, 1913

Finisher

/fĭn'-ĭsh-ẽr/ · Fin·ish·er · IPA /ˈfɪnɪʃɚ/
01 n. One who finishes, puts an end to, completes, or perfects; esp. used in the trades, as in hatting, weaving, etc., for the workman who gives …
  1. 1.
    One who finishes, puts an end to, completes, or perfects; esp. used in the trades, as in hatting, weaving, etc., for the workman who gives a finishing touch to the work, or any part of it, and brings it to perfection.
    “O prophet of glad tidings, finisher Of utmost hope!” Milton.
  2. 2.
    Something that gives the finishing touch to, or settles, anything.[Colloq.]