The most common and most likely answer to this crossword clue is the 7 letter word FRAILER
I've seen this crossword clue in Independent
F
R
A
I
L
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More clues leading to the result FRAILER
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The straight part
We know that "weaker" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case weaker = frailer.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 FRAILER mean?
FRAILER adjective- Easily broken physically; not firm or durable; liable to fail and perish
- Weak; infirm.
- Mentally fragile.
- Liable to fall from virtue or be led into sin; not strong against temptation; weak in resolution; unchaste.
- One who plays a musical instrument by frailing.