The most common and most likely answer to this crossword clue is the 4 letter word TROT
I've seen this crossword clue in Financial Times
T
R
O
T
More clues leading to the result TROT
- Pack’s expelled a communist
- Cards not contributing ace to run?
- Having run into infant, jog
- Left-winger to make brisk progress
- Old-fashioned loyalty not hard for left-winger
- One that’s from the left in revolution?
- Time to go off for a jog
- Communist’s lively pace
- Joggers do it right, in small measure
- Left-winger beginning to talk rubbish
Buddy explains!

The straight part
We know that "Pace" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pace = trot.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 TROT mean?
TROT noun- Any of several animals related to Equus ferus caballus.
- Equipment with legs.
- Type of equipment.
- A mass of earthy matter, or rock of the same character as the wall rock, occurring in the course of a vein, as of coal or ore; hence, to take horse (said of a vein) is to divide into branches for a distance.
- The sedative, antidepressant, and anxiolytic drug morphine, chiefly when used illicitly.
- An informal variant of basketball in which players match shots made by their opponent(s), each miss adding a letter to the word "horse", with 5 misses spelling the whole word and eliminating a player, until only the winner is left. Also HORSE, H-O-R-S-E or H.O.R.S.E. (see Variations of basketball#H-O-R-S-E).
- (among students) A translation or other illegitimate aid in study or examination.
- (among students) horseplay; tomfoolery
- Heroin (drug).
- An ugly old woman, a hag.
- (chiefly of horses) A gait of a four-legged animal between walk and canter, a diagonal gait (in which diagonally opposite pairs of legs move together).
- A gait of a person or animal faster than a walk but slower than a run.
- A brisk journey or progression.
- A toddler.
- A young animal.
- A moderately rapid dance.
- A succession of heads thrown in a game of two-up.
- (with "good" or "bad") A run of luck or fortune.
- (as 'the trots') Diarrhoea.
- To move along briskly; specifically, to move at a pace between a walk and a run.
- (of a horse) To move at a gait between a walk and a canter.
- To cause to move, as a horse or other animal, in the pace called a trot; to cause to run without galloping or cantering.
- A genre of Korean pop music employing repetitive rhythm and vocal inflections.
- A supporter of Trotskyism.