- A church expert - A clever expert, to begin with, keeps one up his sleeve - Adept - Air combat expert is tops - Champion’s unreturnable serves - Close friend - Dan left a dance with top pilot
- Clinical consultant - General practitioner - Specialist - One who is engaged in the actual use or exercise of
any art or profession, particularly that of law or medicine. - One who does anything customarily or habitually. - A sly or artful person.