Told a fib (4)
I believe the answer is:
lied
'told a fib' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for lied that I've seen before include "Romantic song told a story" , "Was economical with the truth" , "Was untruthful; song" , "conveyed a false impression" , "Told an untruth" .)