Some holiday a help for Indian nanny (4)
I believe the answer is:
ayah
'indian nanny' is the definition.
(I've seen this in another clue)
'some holiday a help' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'AYAH' is hidden within 'holiday a help'.
'for' is the link.
(Other definitions for ayah that I've seen before include "Indian nursemaid" , "Nanny in India" , "Children's nurse in Asia" , "Old nursemaid" , "Servant" .)