The most common and most likely answer to this crossword clue is the 7 letter word PLASTER
I've seen this crossword clue in The Daily Telegraph
P
L
A
S
T
E
R
More clues leading to the result PLASTER
- Perhaps Band Aid record brought back tears when broadcast
- . Continue to block a medical treatment
- Cover render patch
- Column missing front piece of Italian stucco?
- Adhesive material I stripped from column
- Smooth leader of people finally meeting monarch
- Render first aid
- Pearl’s unfortunately cut by tin opener — put this on it?
- Smear something on a wound?
- Endure going in for each dressing
Buddy explains!

The straight part
We know that "dressing" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dressing = plaster.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 PLASTER mean?
PLASTER noun- A paste applied to the skin for healing or cosmetic purposes.
- A small adhesive bandage to cover a minor wound; a sticking plaster.
- A mixture of lime or gypsum, sand, and water, sometimes with the addition of fibres, that hardens to a smooth solid and is used for coating walls and ceilings; render, stucco.
- A cast made of plaster of Paris and gauze; plaster cast.
- Plaster of Paris.
- To cover or coat something with plaster; to render.
- To apply a plaster to.
- To smear with some viscous or liquid substance.
- To hide or cover up, as if with plaster; to cover thickly.
- To smooth over.