Cleared for takeoff, launched attack (3,3)
I believe the answer is:
let fly
'attack' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for let fly that I've seen before include "Fling" , "Attack; throw" , "Launch an attack on someone, verbally" , "Release pent-up anger" , "Attack verbally or physically" .)