Signs of hope with reformed businessman abandoning sin (8)
I believe the answer is:
sunbeams
'signs of hope' is the definition.
(a sunbeam might be a sign of hope)
'reformed businessman abandoning sin' is the wordplay.
'reformed' indicates an anagram.
'abandoning' indicates named letters should be taken away.
'businessman' with 'sin' taken away is 'buessman'.
'buessman' is an anagram of 'SUNBEAMS'.
'with' is the link.
(Other definitions for sunbeams that I've seen before include "daylight?" , "They provide light" .)