Namely, that female's getting cross in one fast movement (7)
I believe the answer is:
scherzo
'one fast movement' is the definition.
(fast musical movement)
'namely that female's getting cross' is the wordplay.
'namely' becomes 'sc' (abbrev for Latin scilicet meaning 'namely').
'that female' becomes 'her' (I've seen this in another clue).
'getting' means one lot of letters go next to another.
'cross' becomes 'zo' (I've seen this in other clues).
'sc'+'her'+'zo'='SCHERZO'
'in' is the link.
(Other definitions for scherzo that I've seen before include "(Musically) a fast movement, usually in triple time" , "Form in music" , "Fast movement (mus.)" , "Eg acquiring this lively piece" , "Fast musical movement" .)