Which instruction makes trap flag zero?

Which instruction makes trap flag zero? If there is not any then how we make it zero?

There is no instruction to set or clear the trap flag like there are instructions for the interrupt and direction flags.
We use two special instructions PUSHF and POPF to push and pop the flag from the stack. We use PUSHF to place flags on the stack, change TF in this image on the stack and then reload into the flags register with POPF.