Over with new ball unexpectedly delivered by in-house squad? (3,5)
I believe the answer is:
own label
'delivered by in-house squad?' is the definition.
(a company produces own-label products in-house)
'over with new ball unexpectedly' is the wordplay.
'over' becomes 'o' (cricket abbreviation).
'with' says to put letters next to each other.
'unexpectedly' indicates anagramming the letters.
'new'+'ball'='newball'
'newball' anagrammed gives 'wnlabel'.
'o'+'wnlabel'='OWN LABEL'
(Other definitions for own label that I've seen before include "peculiar branding" , "E.g. Iceland's brand" .)