The most common and most likely answer to this crossword clue is the 4 plus 3 letter word HOME RUN
I've seen this crossword clue in Financial Times
H
O
M
E
R
U
N
More clues leading to the result HOME RUN
- Poet, northern one, huge hit for Yankees?
- Baseball score in series
- Diamond’s greatest hit in series?
- Sporting achievement in show
- Big hit from poet one translated
- Big shot who married Mrs Simpson, united on third of June
- Sportingly, Ruth often got this housekeeper’s job done?
- Poet, a Parisian that’s touched all the bases
- Old poet, French one, hit in baseball stadium
- Return journey is a hit
Buddy explains!

The straight part
We know that "touched all the bases" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case touched all the bases = home run.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.