Gave an undertaking (8)
I believe the answer is:
promised
(Other definitions for promised that I've seen before include "Made a commitment to do" , "undertaken" , "swore" , "Undertook (to do something)" , "Betrothed" .)
I believe the answer is:
promised
(Other definitions for promised that I've seen before include "Made a commitment to do" , "undertaken" , "swore" , "Undertook (to do something)" , "Betrothed" .)