Race over to hold odd doll in crib (6)
I believe the answer is:
cradle
'crib' is the definition.
(I've seen this before)
'race over to hold odd doll' is the wordplay.
'over' indicates anagramming the letters.
'to hold' indicates putting letters inside.
'odd' means one should take alternating letters.
The alternate letters of 'doll' are 'dl'.
'race' with letters rearranged gives 'crae'.
'crae' placed around 'dl' is 'CRADLE'.
'in' is the link.
(Other definitions for cradle that I've seen before include "Hold tenderly" , "Rocking cot" , "Baby's cot" , "Infant's bed" , "The hand that rocks it rules the world, they say" .)