tinker - noun

a person who enjoys fixing and experimenting with machines and their parts

formerly a person (traditionally a Gypsy) who traveled from place to place mending pots and kettles and other metal utensils as a way to earn a living

small mackerel found nearly worldwide

tinker - verb

• do random, unplanned work or activities or spend time idly
• work as a tinker or tinkerer
• try to fix or mend

tinker - thesaurus

fiddle   monkey   potter   putter   tinkerer