Colossus inspiring current painter (6)
I believe the answer is:
titian
'painter' is the definition.
(Titian is an example)
'colossus inspiring current' is the wordplay.
'colossus' becomes 'titan' ('titan' can be a synonym of 'colossus').
'inspiring' indicates putting letters inside.
'current' becomes 'i' (symbol for electric current).
'titan' placed around 'i' is 'TITIAN'.
(Other definitions for titian that I've seen before include "(Of hair) bright golden auburn; painter" , "Venetian painter - shade of red" , "Italian 16th-century painter" , "Sixteenth century Venetian painter" , "Italian Old Master and hair-colour" .)