The most common and most likely answer to this crossword clue is the 8 letter word MILKSOPS
M
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L
K
S
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More clues leading to the result MILKSOPS
Buddy explains!

The straight part
We know that "wimps" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wimps = milksops.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 MILKSOPS mean?
MILKSOPS noun- A piece of bread sopped in milk.
- Bread pieces in a bowl, sprinkled with sugar, & covered in hot milk.
- (by extension) A weak, easily frightened or ineffectual person.