Brown needs energy for this dance! (5)
I believe the answer is:
tango
'this dance' is the definition.
(tango is a kind of dance)
'brown needs energy' is the wordplay.
'brown' becomes 'tan' (tan is a kind of brown).
'needs' means one lot of letters go next to another.
'energy' becomes 'go' (I've seen this in other clues).
'tan'+'go'='TANGO'
'for' is the link.
(Other definitions for tango that I've seen before include "Movement from Argentina" , "Activity requiring two to" , "reputedly takes two" , "one followed by uniform" , "One from Argentina" .)