The most common and most likely answer to this crossword clue is the 6 letter word NOSING
I've seen this crossword clue in The Guardian
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More clues leading to the result NOSING
- What the righteous have initially got going, gradually
- Checking drink’s without fault
- Making slow movement in song that’s playing
- Sniffing and moving slowly out
- Refusal to face evil head of Government snooping
- Smelling no wickedness? Good!
- Sniffing some of a cappuccino’s ingredients
- Found on the stairs prying?
- On the sniff? Please don’t serenade me!
- Trying to find answer to Domingo’s ‘Shall I dance for you?’
Buddy explains!

The straight part
We know that "Making slow movement" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case making slow movement = nosing.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 NOSING mean?
NOSING verb- To move cautiously by advancing its front end.
- To snoop.
- To detect by smell or as if by smell.
- To push with one's nose; to nuzzle.
- To defeat (as in a race or other contest) by a narrow margin; sometimes with out.
- To utter in a nasal manner; to pronounce with a nasal twang.
- To furnish with a nose.
- To confront; be closely face to face or opposite to.
- An animal's pushing or exploration with the nose.
- That part of the treadboard of a stair that projects over the riser.
- Any similar projection, such as the projecting edge of a moulding.