The most common and most likely answer to this crossword clue is the 5 letter word RESET
I've seen this crossword clue in The Times
R
E
S
E
T
More clues leading to the result RESET
- Put back on TV
- Change state support to include energy
- . Nothing odd in brief siesta – change alarm maybe
- . Go back to original puzzle, missing a turn
- Regularly defective drier’s best turned off and on again
- Reconfigured base conserving energy
- Return to original state, taking drug in break
- Place again on the box
- Adjust again, take it easy to acquire energy
- Engineers to get TV adjusted again
Buddy explains!

The straight part
We know that "Put back" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case put back = reset.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 RESET mean?
RESET verb- To set back to the initial state.
- To set to zero.
- To adjust; to set or position differently.
- An act of resetting to the initial state
- Setting to zero
- Something that is reset
- A device, such as a button or switch, for resetting something.
- That which is reset; printed matter set up again.
- The crime of knowingly and dishonestly receiving stolen goods, or harbouring an outlaw.
- To receive and hide (stolen goods, or a criminal, etc.)