Crossword Genius

Solemn promise to refrain from drinking toast (6)

Ross

I believe the answer is:

pledge

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'solemn promise' is the first definition.
(I've seen this before)

'refrain from drinking toast' is the second definition.
'pledge' can be an answer for 'toast' (synonyms). I am not certain of the 'refrain from drinking' bit.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for pledge that I've seen before include "Promise - security" , "make toast" , "Firm commitment" , "Vow; security" , "Promise (to abstain?)" .)

Want a hint initially instead of a full solution? Install my app