Angry getting access to lower deck in shade (10)

'shade' is the definition.
(I know that crosshatch is a type of shade)

'angry getting access to lower deck' is the wordplay.
'angry' becomes 'cross' (cross can mean annoyed or angry).
'getting' says to put letters next to each other.
'access to lower deck' becomes 'hatch' (a hatch might lead to a lower deck).
'cross'+'hatch'='CROSSHATCH'

'in' is the link.