The most common and most likely answer to this crossword clue is the 6 letter word ADMIRE
I've seen this crossword clue in The Times
A
D
M
I
R
E
More clues leading to the result ADMIRE
- A terrible maiden being held in respect
- Warmly approve of Merida when travelling
- A grave involving mark put on a pedestal
- Think highly of poster on Slough
- Stimulating dream I like very much
- One millions held in dreadful esteem
- Greatly respect a Frenchman confined in awful surroundings
- Have high regard for management about to replace unspecified number
- Material designed to influence behaviour on road going on about “respect“
- Respect
Buddy explains!

The straight part
We know that "Warmly approve of" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case warmly approve of = admire.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 ADMIRE mean?
ADMIRE verb- To be amazed at; to view with surprise; to marvel at.
- To regard with wonder and delight.
- To look upon with an elevated feeling of pleasure, as something which calls out approbation, esteem, love or reverence.
- To estimate or value highly; to hold in high esteem.
- To be enthusiastic about (doing something); to want or like (to do something). (Sometimes followed by to.)