Overlooking some French titled lady for musical (5)
I believe the answer is:
chess
'musical' is the definition.
(Benny Andersson and Bjrn Ulvaeus musical)
'overlooking some french titled lady' is the wordplay.
'overlooking' is a deletion indicator.
'some french' becomes 'du' ('some' in French).
'titled lady' becomes 'duchess' (woman with an aristocratic title).
'duchess' with 'du' removed is 'CHESS'.
'for' acts as a link.
(Other definitions for chess that I've seen before include "activity aimed at downfall of a king" , "form of battle" , "Board game for two players" , "Board game of 13, 16 and 21" , "Game involving mates" .)