The most common and most likely answer to this crossword clue is the 7 letter word UNBENDS
U
N
B
E
N
D
S
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The straight part
We know that "Relaxes" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case relaxes = unbends.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 UNBENDS mean?
UNBENDS verb- To remove a bend so as to make, or allow to become, straight
- To release (a load) from a strain or from exertion; to set at ease for a time; to relax.
- To unfasten sails from the spars or stays to which are attached for use.
- To cast loose or untie
- To cease to be bent; to become straight.
- To relax in exertion, attention, severity, or the like
- To enjoy oneself; to become affable and free from formality