The most common and most likely answer to this crossword clue is the 7 letter word SNIFTER
I've seen this crossword clue in Financial Times
S
N
I
F
T
E
R
More clues leading to the result SNIFTER
- Spoil mitts being back in strong breeze
- One using sieve to cover new brandy glass
- 14 guides go back to collect paper
- End of spoon with riddle about a little drink
- Tot’s feet caught in twisted reins
- Fine arts: obscure without a little drink
- Batman finally trapped by Riddler gets shot, perhaps
- Set up controls to cover daily intake of alcohol
- Rocky feints with right slug
- A tot and Batman ultimately entrapped by Riddler
Buddy explains!

The straight part
We know that "Tot" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tot = snifter.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 SNIFTER mean?
SNIFTER noun- A small alcoholic drink.
- A pear-shaped glass for drinking brandy or other alcoholic beverages.
- A severe storm.
- (chiefly in the plural) A sniff or sniffle.
- To sniff.