Young creature giving wounded first aid (5)
I believe the answer is:
whelp
'young' is the definition.
(I know that whelp is a type of young mammal)
'giving wounded first aid' is the wordplay.
'giving' means one lot of letters go next to another.
'wounded first' becomes 'w' (hst letter of 'wounded').
'aid' becomes 'help' (synonyms).
'w' put next to 'help' is 'WHELP'.
'creature' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for whelp that I've seen before include "Give birth to (a puppy)" , "bear" , "Puppy, cub" , "Have puppies" , "Perform deliveries without assistance" .)