When I let a wild dove out, it's worth seeing (5)
I believe the answer is:
video
'when i let' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'a wild dove out it's worth seeing' is the wordplay.
'a wild' indicates an anagram.
'out' is an insertion indicator.
'it's worth seeing' becomes 'i' (I can't explain this - if you can you should believe this answer much more).
'dove' with letters rearranged gives 'vdeo'.
'vdeo' going around 'i' is 'VIDEO'.
Can you help me to learn more?
(Other definitions for video that I've seen before include "Who killed the radio star? (5)" , "Film recording" , "Taped film" , "Recording medium" , "Visual element of television" .)