Mother's alternative choice (5)
I believe the answer is:
other
'alternative choice' is the definition.
(I've seen this in another clue)
'mother's' is the wordplay.
'OTHER' is hidden in amongst the letters.
But, I'm uncertain how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for other that I've seen before include "Different; alternate" , "Alternative of two" , "Throe (anag)" , "not like you" , "Different, disparate" .)