A bridal accessory said to provide help (5)
I believe the answer is:
avail
'help' is the definition.
(I know that help can be written as avail)
'a bridal accessory said' is the wordplay.
'bridal accessory' becomes 'veil' (I've seen this in another clue).
'said' shows a homophone (sound like).
'veil' is a homophone of 'vail'.
'a'+'vail'='AVAIL'
'to provide' is the link.
(Other definitions for avail that I've seen before include "(Of no) use or benefit" , "Be of service to" , "Make use, take advantage" , "Provide help; profit" , "Serve a purpose" .)