Taylor Swift and Harry Styles of One Direction. Photo / Getty Images

Taylor Swift has premiered a clip of new track Out of the Woods.

The 24-year-old star released a snippet of the upcoming song, which is rumoured to be based on her failed romance with One Direction heartthrob Harry Styles, on Good Morning America, and admitted it is about a "fragile" relationship which was "full of anxiety".

In a YouTube video in which she discusses the track, she explained: "This song is about the fragility and a kind of breakable nature of some relationships. This was a relationship where it was kind of living day to day wondering where it was going, if it was going to go anywhere, if it was going to end the next day.

"It was a relationship where you kinda never feel like you're standing on solid ground, and that kind of a feeling brings on excitement but also extreme anxiety and kind of a frantic feeling of wondering.

"This song sounds exactly like that frantic feeling of anxiety and questioning but it stresses that even if a relationship is breakable and fragile, and full of anxiety, it doesn't mean that it isn't exciting, beautiful and all of the things that we look for."

A snippet of the song - which was co-written with fun.'s Jack Antonoff - is the second track to be heard from her upcoming fifth studio album, 1989, following the worldwide success of Shake It Off, her first single from the record.

While Shake It Off is about ignoring haters, the blonde beauty explained Out of the Woods is more intimate and based around one of her personal relationships, which has sparked suggestions it is about her romance with Harry, who she became close to at the end of 2012 before their split in January 2013.

She explained: "Out of the Woods is one of my favourite songs on this album because one of the goals I set out to accomplish when I wanted to make this album is I wanted to make these songs sounded exactly the way that the emotions felt when I felt them."

Taylor recently revealed the track is specifically about a serious snowmobile accident with an ex-boyfriend during which he lost control of the mode of transport and crashed it, resulting in them both needing to go to hospital where her then-beau had "20 stitches".

In the tune, she sings: "Remember when you hit the brakes too soon/Twenty stitches in a hospital room."

Watch the preview of Out of the Woods on Good Morning America:

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Watch Taylor Swift talk about her new song Out of the Woods:

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The full version of Out of the Woods will be available on Wednesday (15.10.14).

- Bang! Showbiz