The most common and most likely answer to this crossword clue is the 5 letter word TREAD
I've seen this crossword clue in The Daily Telegraph
T
R
E
A
D
More clues leading to the result TREAD
- Walk over: time to pick up a book
- Rush, full of energy, upping pace
- Engineers puncturing little part of tyre
- To some extent, the sole requirement of sight-reading
- Step in tango right to attract judge’s close notice
- Plod tense – do this in library?
- Step in tango requiring study
- Walk three yards regularly
- Taking humour to begin with — Screw has it and Tramp
- From surface of tyre, study this?
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 = tread.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 TREAD mean?
TREAD verb- To step or walk (on or over something); to trample.
- To step or walk upon.
- To beat or press with the feet.
- To go through or accomplish by walking, dancing, etc.
- To crush under the foot; to trample in contempt or hatred; to subdue.
- To copulate; said of (especially male) birds.
- (of a male bird) To copulate with.
- A step taken with the foot.
- A manner of stepping.
- The sound made when someone or something is walking.
- A way; a track or path.
- The horizontal part of a step in a flight of stairs.
- The grooves carved into the face of a tire, used to give the tire traction.
- The grooves on the bottom of a shoe or other footwear, used to give grip or traction.
- The chalaza of a bird's egg; the treadle.
- The act of avian copulation in which the male bird mounts the female by standing on her back.
- (fortification) The top of the banquette, on which soldiers stand to fire over the parapet.
- A bruise or abrasion produced on the foot or ankle of a horse that interferes, or strikes its feet together.