The most common and most likely answer to this crossword clue is the 6 letter word RELIEF
I've seen this crossword clue in The Times
R
E
L
I
E
F
More clues leading to the result RELIEF
- Aid learner, one cutting the knot?
- Support story accepted by match official
- Rest of ridge covering about 500 metres in China
- Help priest imprisoned by Judge
- Stand absorbed by official example of sculpture
- Locum‘s about to take wrong file
- Substitute‘s story accepted by match official
- Supply aid – outstanding work
- Concerning story, fellow gets help
- Sports official eating whopper for charity
Buddy explains!

The straight part
We know that "Support" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case support = relief.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 RELIEF mean?
RELIEF noun- The removal of stress or discomfort.
- The feeling associated with the removal of stress or discomfort.
- Release from a post or duty, as when replaced by another.
- The person who takes over a shift for another.
- Aid or assistance offered in time of need.
- Court-ordered compensation, aid, or protection, a redress.
- A lowering of a tax through special provisions; tax relief.
- A certain fine or composition paid by the heir of a tenant upon the death of the ancestor.
- A type of sculpture or other artwork in which shapes or figures protrude from a flat background.
- The apparent difference in elevation in the surface of a painting or drawing made noticeable by a variation in light or color.
- The difference of elevations on a surface.
- The supposed projection of a charge from the surface of a field, indicated by shading on the sinister and lower sides.
- (of a surface) Characterized by surface inequalities.
- Of or used in letterpress.