The most common and most likely answer to this crossword clue is the 5 letter word SOMAS
S
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More clues leading to the result SOMAS
Buddy explains!
The straight part
We know that "Plants mostly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case plants mostly = somas.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 SOMAS mean?
SOMAS noun- The whole axial portion of an animal, including the head, neck, trunk, and tail.
- The corporeal body, as distinguished from the psyche or soul and the pneuma or spirit.
- The bulbous part of a neuron, containing the cell nucleus.