Are told to accommodate the girl (7)
I believe the answer is:
heather
'girl' is the definition.
'are told to accommodate the' is the wordplay.
'are told' becomes 'hear' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to accommodate' means one lot of letters goes inside another.
'hear' enclosing 'the' is 'HEATHER'.
Can you help me to learn more?
(Other definitions for heather that I've seen before include "Another term for ling" , "Girl's name - ling" , "Calluna vulgaris" , "Ericaceous shrub" , "Erica!" .)