What's the alternative to relative losing the head? (5)
I believe the answer is:
other
'what's the alternative' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for other that I've seen before include "Different, alternative" , "Alternative - unrelated" , "One may be significant" , "Different, not the same one or this one" , "Very unusual" .)