Perform tango beat in reverse (5)
I believe the answer is:
enact
'perform' is the definition.
(I've seen this before)
'tango beat in reverse' is the wordplay.
'tango' becomes 'T' (phonetic alphabet: alpha, bravo, charlie etc.).
'beat' becomes 'cane' (caning is a kind of beating).
'in reverse' says the letters should be written backwards.
't'+'cane'='tcane'
'tcane' backwards is 'ENACT'.
(Other definitions for enact that I've seen before include "Play one's part" , "Put on stage or statute book" , "Ordain" , "Establish by law - perform" , "Official order" .)