The most common and most likely answer to this crossword clue is the 6 letter word LEGUME
I've seen this crossword clue in The Times
L
E
G
U
M
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More clues leading to the result LEGUME
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The straight part
We know that "Pulse" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pulse = legume.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 LEGUME mean?
LEGUME noun- The fruit or seed of leguminous plants (as peas or beans) used for food.
- Any of a large family (Fabaceae, syn. Leguminosae) of dicotyledonous herbs, shrubs, and trees having fruits that are legumes or loments, bearing nodules on the roots that contain nitrogen-fixing bacteria, and including important food and forage plants (as peas, beans, or clovers).
- A pod dehiscent into two pieces or valves, and having the seed attached at one suture, as that of the pea.