Hold in some affection (3)
I believe the answer is:
hug
'hold' is the definition.
(I know that hug is a type of embrace)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for hug that I've seen before include "Tightly embrace" , "Embrace (like a bear?)" , "Embrace closely" , "Clasp" , "Cuddle" .)