Radiance noticed around husband (5)
I believe the answer is:
sheen
'radiance' is the definition.
(I've seen this before)
'noticed around husband' is the wordplay.
'noticed' becomes 'seen' (I've seen this before).
'around' is an insertion indicator.
'husband' becomes 'h'.
'seen' going around 'h' is 'SHEEN'.
(Other definitions for sheen that I've seen before include "Superficial brightness" , "Patina" , "Soft lustre on a surface" , "to the west of Putney" , "actor?" .)