1) Counterfeiter 2) Expression maker 3) Fabricator 4) Forger 5) He really makes money 6) Inventor 7) Minter of words 8) Money maker 9) Neologist 10) Oceans or seas 11) Originator 12) Phrase inventor 13) Verbal pioneer 14) Word or phrase pioneer Found on https://www.crosswordclues.com/clue/coiner
• (n.) One who makes or stamps coin; a maker of money; -- usually, a maker of counterfeit money. • (n.) An inventor or maker, as of words. Found on http://thinkexist.com/dictionary/meaning/coiner/
Coin'er noun 1. One who makes or stamps coin; a maker of money; -- usually, a maker of counterfeit money. « Precautions such as are employed by coiners and receivers of stolen goods. Macaulay. » 2. An inventor or maker, as of words. Camden. Found on http://www.encyclo.co.uk/webster/C/106