Went on a terrible date (10)
I believe the answer is:
persevered
'went on' is the definition.
(persevering is a kind of going on)
'a terrible date' is the wordplay.
'a' becomes 'per'.
'terrible' becomes 'severe' ('severe' can be a synonym of 'terrible').
'date' becomes 'd' (common abbreviation eg in DOB, date of birth).
'per'+'severe'+'d'='PERSEVERED'
(Other definitions for persevered that I've seen before include "didn't give up" , "Kept going" , "Was not deterred" .)