Types welcoming power games (6)
'games' is the definition.
(I've seen this before)
'types welcoming power' is the wordplay.
'types' becomes 'sorts' (I've seen this before).
'welcoming' is an insertion indicator (in sense of 'inviting in').
'power' becomes 'p'.
'sorts' placed around 'p' is 'SPORTS'.
(Other definitions for sports that I've seen before include "Football, tennis etc.", "like a day at school", "Competitive games", "Wears (a noticeable item)", "Wears; physical games".)