长袖善舞

long sleeves help one dance beautifully (idiom); money and power will help you in any occupation

length / long / forever / always / constantly

chief / head / elder / to grow / to develop / to increase / to enhance

to dance / to wield / to brandish

good (virtuous) / benevolent / well-disposed / good at sth / to improve or perfect

sleeve / to tuck inside one's sleeve

long sleeves / long-sleeved shirt