Spicy thing, groom might set about bridesmaid, finally (5,6)
I believe the answer is:
curry powder
'spicy thing' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'groom might set about bridesmaid finally' is the wordplay.
'groom' becomes 'curry' (synonyms).
'might' becomes 'power' (being mighty).
'set about' means one lot of letters goes inside another.
'finally' indicates one should take the final letters.
The last letter of 'bridesmaid' is 'd'.
'power' enclosing 'd' is 'powder'.
'curry'+'powder'='CURRY-POWDER'
Can you help me to learn more?
(Other definitions for curry powder that I've seen before include "Mixture of ground spices" , "Finely ground coriander, turmeric, ginger etc for Indian food" , "Indian cooking mixture" , "Hot stuff (in the kitchen)!" .)