The most common and most likely answer to this crossword clue is the 7 letter word SAVIOUR
I've seen this crossword clue in The Guardian
S
A
V
I
O
U
R
More clues leading to the result SAVIOUR
- One aboard smack who performs rescue?
- Various different means of being delivered
- Relish hugging one rescuer
- Relish receiving current bringer of delivery
- Various changes, and person who delivers others
- Take great pleasure in hugging one rescuer
- Guardian shows taste, incorporating Independent? (7
- One who delivers various changes
- Various upsets requiring rescuer
- Enjoy embracing one’s rescuer
Buddy explains!

The straight part
We know that "rescuer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rescuer = saviour.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 SAVIOUR mean?
SAVIOUR noun- A person who saves someone, rescues another from harm.
- A child who is born to provide an organ or cell transplant to a sibling who has an otherwise fatal disease (used in combination, with "sibling", "baby", "child", "brother", "sister", etc.)