The phrase "allowed to pull away" is correct and usable in written English.
It can be used in contexts where someone is permitted to distance themselves emotionally or physically from a situation or person.
Example: "After years of feeling obligated to stay close, she finally felt allowed to pull away and focus on her own happiness."
Alternatives: "permitted to distance oneself" or "granted the freedom to withdraw."
His try right at the end of the first half gave Ireland the cushion that allowed them to pull away from Scotland after the interval.
They pitted him early in order to jump him ahead of Vettel, fitting him with a fresh set of option tyres that allowed him to pull away from the Red Bull which, in error, had been fitted with the slower primes.
The Ducks' energetic forechecking and physical play allowed them to pull away in the third period Friday.
Hilton celebrated the birth of his first child with a 73-yard TD catch, spurring a second-half turnaround that allowed Indianapolis to pull away against visiting Jacksonville.
Unfortunately, the intense Bulldogs' defense finally worn down the Spartans in the fourth quarter and allowed them to pull away for a 50-38 victory.
This created the separation that allowed us to pull away from Estancia and hold on to win". When the teams first met on Jan . 10 Estancia came away with a 60-55 win.
He won the money list with over $9.3 million and his performance in the final three FedEx Cup events — 10 of his last 12 rounds were in the 60s — allowed him to pull away from Jason Day, Adam Scott and Jordan Spieth to post the lowest scoring average.
After a slight delay for a coughing spectator that drew exasperated smiles from both players, Ferrer leveled the third set at 3-3, refusing to allow Nadal to pull away just yet.
Even Y Combinator co-founder Paul Graham called out Gmail as painfully slow in a recent essay detailing ambitious startup ideas, saying that if someone were to build a service that was only as good as Gmail, but fast, that alone would allow them to pull away users from Google's service.
La Cañada played strong throughout the first half, but ran out of gas in the third quarter to allow Westlake to pull away.
