Decorative cape provided by some terrific husband (5)
I believe the answer is:
fichu
'decorative cape' is the definition.
'fichu' can be an answer for 'cape' (I've seen this before). I am unsure of the 'decorative' bit.
'provided by some terrific husband' is the wordplay.
'provided by' indicates the answer is hidden within the clue (the answer is provided within the clue).
'FICHU' is hidden within 'some terrific husband'.
Can you help me to learn more?
(Other definitions for fichu that I've seen before include "Small triangular shawl" , "Light triangular scarf" , "Triangular piece of muslin for the neck" , "Lace shawl" , "Triangular cape" .)