Whirling dance in centre of Lagos (7)
I believe the answer is:
reeling
'whirling' is the definition.
('reel' can be a synonym of 'whirl')
'dance in centre of lagos' is the wordplay.
'dance' becomes 'reel' (reel is a kind of dance).
'centre of' means to look at the middle letters.
The central letter of 'lagos' is 'g'.
'reel'+'in'+'g'='REELING'
(Other definitions for reeling that I've seen before include "Swimming" , "Feeling giddy; dancing" , "Dazed" , "Punchy" , "Unable properly to control one's movements" .)