The most common and most likely answer to this crossword clue is the 5 letter word LOLLY
I've seen this crossword clue in The Guardian
L
O
L
L
Y
More clues leading to the result LOLLY
- Bread stick goes into this
- Sweet mint?
- Idle year requiring cash, commonly
- Stick with sweet lines about love and end of hostility
- Without notice, lady invests old students’ dough
- … some students possessing nothing, with yen to make cash
- Ready to relax by end of day
- Sweetbread?
- Money expressed in pounds sterling more often than not
- Funds that might be frozen
Buddy explains!

The straight part
We know that "Stick with sweet" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case stick with sweet = lolly.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 LOLLY mean?
LOLLY noun- A piece of hard candy on a stick; a lollipop.
- Money.
- Any confection made from sugar, or high in sugar content; a sweet, a piece of candy.
- A lump.
- Snow or fine ice floating on water.