The most common and most likely answer to this crossword clue is the 7 letter word NUANCED
I've seen this crossword clue in The Guardian
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More clues leading to the result NUANCED
- Half naked, did a jig, not initially subtle
- Subtle daughter follows sister around a church
- Political party in nude dancing that’s subtle
- Subtle introduction to Nietzsche foxed a dunce
- Can nude dancing be subtle?
- Snub fancy beds, none being edged with subtle shades
- Subtly different, new universal dance is front-to-back
- Refined African politicians in revolutionary study of a subtle sort?
- Subtle and revolutionary study about unionist attracting African politicians
- Religious woman holding a church degree with distinction
Buddy explains!

The straight part
We know that "subtle" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case subtle = nuanced.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 NUANCED mean?
NUANCED verb- To apply a nuance to; to change or redefine in a subtle way.
- Having nuances; possessed of multiple layers of detail, pattern, or meaning