The most common and most likely answer to this crossword clue is the 10 letter word KICK-START
I've seen this crossword clue in Independent
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More clues leading to the result KICK-START
Buddy explains!

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 KICK-START mean?
KICK-START noun- A metal bar on a motorcycle used to start its engine.
- An act of starting a motorcycle by quickly depressing the kick start with one's foot.
- A fast or strong start; help with starting or beginning well.
- An impetus that starts or restarts some process.
- To start a motorcycle.
- To start or begin strongly or quickly.
- To make (something) active, functional, or productive again; to reinvigorate (an activity, system, or process).