What does smarten mean in crosswords?

smarten means: If you ask someone to smarten up, you want them to make themselves look clean and tidy.

Word entry · 7 letters

smarten

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7 lettersPronunciation /ˈsmɑːt(ə)n/Sorted aemnrstStarts with SEnds with N0 cluesCommon crossword word

1S2M3A4R5T6E7N

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If you ask someone to smarten up, you want them to make themselves look clean and tidy.

From smart + -en.

“The Sorting Ceremony will take place in a few minutes in front of the rest of the school. I suggest you all smarten yourselves up as much as you can while you are waiting.”
“I braced myself and smartened my pace, shouldering my way through the crowd.”
“How do we achieve this smartening of the grid? The CALM approach in the future will be to use reinforcement learning (RL) controllers as a basis for optimizing the synergy between operators and automation.”

Source: Wiktionary, CC BY-SA 4.0

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