Cryptic crossword clue
Cover oneself in glory at first with fantastic deeds and rest 3,7

The most common and most likely answer to this crossword clue is the 3 plus 7 letter word GET DRESSED

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Buddy explains!

The straight part
We know that "Cover oneself" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cover oneself = get dressed.
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.

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