1fid·dle 
/ˈfɪdl̟/ noun
plural fid·dles /ˈfɪdl̟/ noun [count] informal 1 : violin
▪ an expert with/on the fiddle 2 Brit : a dishonest way of getting money : swindle, scam
▪ arrested for a tax fiddle
▪ an expert with/on the fiddle
▪ arrested for a tax fiddle
fit as a fiddle — see 1fit
play second fiddle
: to have a less important position or status than someone or something else : to be regarded or treated as less important
▪ a former star athlete who is not happy to play second fiddle as he nears the end of his career — often + to ▪ He's not happy to play second fiddle to the younger players on the team.
▪ a former star athlete who is not happy to play second fiddle as he nears the end of his career — often + to ▪ He's not happy to play second fiddle to the younger players on the team.
