His father was an intimidating tycoon, still primarily remembered for his legal action against Private Eye, though revered in some City circles as n extraordinary businessman with the flair of a successful gambler and an uncanny acumen that saw him build his empire from one company selling suntan lotion into a global grocery empire.

acumen (n) 1: a tapering point 2: shrewdness shown by keen insight [syn: insightfulness] – source: The Observer Magazine 13/04/03, p. 14–15