PA model accommodates a woman (6)
I believe the answer is:
tannoy
'pa' is the definition.
(a public address system)
'model accommodates a woman' is the wordplay.
'model' becomes 'toy' (toy can mean a miniature model).
'accommodates' means one lot of letters goes inside another.
'a woman' becomes 'ann' (woman's name).
'toy' placed around 'ann' is 'TANNOY'.
(Other definitions for tannoy that I've seen before include "Speaker" , "Sound amplification system" , "Public address system" , "Loudspeaker system" , "Orator's amplifier" .)