Game requiring many skills (5)
I believe the answer is:
darts
'game' is the definition.
(darts is a kind of game)
'many skills' is the wordplay.
'many' becomes 'd' (Roman numeral for 500).
'skills' becomes 'arts' (art can mean a skill or talent).
'd'+'arts'='DARTS'
'requiring' acts as a link.
(Other definitions for darts that I've seen before include "Game with arrows and a board" , "Moves along rapidly" , "Game; moves quickly" , "They are thrown at targets in pubs" , "Traditional pub game" .)