Scottish innovator to record a birdie in flight (5)
'scottish innovator' is the definition.
(John Logie Baird)
'record a birdie in flight' is the wordplay.
'record' becomes 'log' (logging is a kind of recording).
'in flight' indicates anagramming the letters (the letters fly around).
'a'+'birdie'='abirdie'
'abirdie' with letters rearranged gives 'iebaird'.
'log'+'iebaird'='LOGIE BAIRD'
'to' is the link.
'a birdie in flight' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'scottish innovator to record' is the wordplay.
'scottish innovator' becomes 'ie' (I can't explain this - if you can you should believe this answer much more).
'to' means one lot of letters go next to another (I've seen this in other clues).
'record' becomes 'log' (logging is a kind of recording).
'ie' after 'log' is 'LOGIE'.
(Another definition for logie that I've seen is " John - - Baird, TV pioneer".)