Dancing bride succeeded causing wreckage (6)
I believe the answer is:
debris
'wreckage' is the definition.
(I've seen this in another clue)
'dancing bride succeeded' is the wordplay.
'dancing' indicates anagramming the letters.
'succeeded' becomes 's' (genealogical abbreviation).
'bride' with letters rearranged gives 'debri'.
'debri'+'s'='DEBRIS'
'causing' acts as a link.
(Other definitions for debris that I've seen before include "Fragments of wreckage" , "Remains - wreckage" , "Brides among rubble" , "Rubble, detritus" , "Detritus, rubbish" .)