The most common and most likely answer to this crossword clue is the 7 letter word IDOLIZE
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The straight part
We know that "Admire" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case admire = idolize.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 IDOLIZE mean?
IDOLIZE verb- To make an idol of, or to worship as an idol.
- To adore excessively; to revere immoderately.