Had a diversion - a great day with the wild deer (6)
I believe the answer is:
veered
'had a diversion' is the definition.
Although both the answer and definition are past participle verbs, I cannot see how they can define each other.
'a great day with the wild deer' is the wordplay.
'a great day' becomes 've' (abbreviation for Victory in Europe Day).
'with' means one lot of letters go next to another.
'the wild' indicates an anagram.
'deer' with letters rearranged gives 'ered'.
've'+'ered'='VEERED'
Can you help me to learn more?
(Other definitions for veered that I've seen before include "Changed direction abruptly" , "Took evasive action" , "Swerved" , "Tacked suddenly" , "Changed direction or course, as wind may" .)