The most common and most likely answer to this crossword clue is the 4 letter word LIFT
I've seen this crossword clue in The Daily Telegraph
L
I
F
T
More clues leading to the result LIFT
- Get up from the ground, oddly ignoring oldie with pink organ
- Cancel raise
- Support condition in Lithuania
- Launch unfinished biography on posh chap
- Fine to be carried in illuminated hoist
- Take a journey in someone else’s vehicle
- Take liberal Independent over another paper
- Its passengers don’t take flight
- Exalted spirits flit about Scottish sky
- Take up 17 yards by the look of it!
Buddy explains!

The straight part
We know that "Launch" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case launch = lift.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does LIFT mean?
LIFT noun- An act of lifting or raising.
- The act of transporting someone in a vehicle; a ride; a trip.
- Mechanical device for vertically transporting goods or people between floors in a building; an elevator.
- An upward force, such as the force that keeps aircraft aloft.
- (measurement) The difference in elevation between the upper pool and lower pool of a waterway, separated by lock.
- A thief.
- The lifting of a dance partner into the air.
- Permanent construction with a built-in platform that is lifted vertically.
- An improvement in mood.
- The amount or weight to be lifted.
- The space or distance through which anything is lifted.
- A rise; a degree of elevation.
- A liftgate.
- A rope leading from the masthead to the extremity of a yard below, and used for raising or supporting the end of the yard.
- One of the steps of a cone pulley.
- (shoemaking) A layer of leather in the heel of a shoe.
- That portion of the vibration of a balance during which the impulse is given.
- To raise or rise.
- To steal.
- To source directly without acknowledgement; to plagiarise.
- To arrest (a person).
- To remove (a ban, restriction, etc.).
- To alleviate, to lighten (pressure, tension, stress, etc.)
- To cause to move upwards.
- To lift weights; to weight-lift.
- To try to raise something; to exert the strength for raising or bearing.
- To elevate or improve in rank, condition, etc.; often with up.
- To bear; to support.
- To collect, as moneys due; to raise.
- To transform (a function) into a corresponding function in a different context.
- To buy a security or other asset previously offered for sale.
- Air.
- The sky; the heavens; firmament; atmosphere.