Anger, after sailor gets cross (7)
I believe the answer is:
saltire
'cross' is the definition.
(I know that saltire is a type of cross)
'anger after sailor' is the wordplay.
'anger' becomes 'ire' (ire is intense rage).
'after' is a charade indicator (letters next to each other).
'sailor' becomes 'salt' (salt is a kind of sailor).
'ire' after 'salt' is 'SALTIRE'.
'gets' is the link.
(Other definitions for saltire that I've seen before include "flag - 8's? [SAINT ANDREW]" , "Diagonal cross (heraldry)" , "Scottish cross" , "X-shaped cross" , "Cross like St Andrew's" .)