Ascot tie
An ascot tie was a necktie, occasionally worn under the collar of a shirt.
The Eighth Doctor wore ascot ties of dupioni in flaxen yellow, (COMIC: The Pictures of Josephine Day) eggplant purple, (COMIC: A Matter of Life and Death) dark teal (COMIC: The Lost Dimension) or midnight blue. (TV: The Night of the Doctor)
The Curator wore ascot ties done on navy blue (TV: The Day of the Doctor) or burgundy. (COMIC: The Then and the Now)
Harry Sullivan wore a plum ascot tie during his travels with the Fourth Doctor. (TV: Robot, The Ark in Space, The Sontaran Experiment, Genesis of the Daleks, Revenge of the Cybermen)
Redvers Fenn-Cooper wore an ascot tie of burgundy and gold paisley under the collar of his ivory shirt. (TV: Ghost Light)