Social worker, female, put up aerial (7)
I believe the answer is:
antenna
'aerial' is the definition.
(I know that aerial can be written as antenna)
'social worker female put up' is the wordplay.
'social worker' becomes 'ant' (I've seen this in another clue).
'female' becomes 'anne' (I've seen this before).
'put up' shows that the letters should be reversed in order.
'anne' reversed gives 'enna'.
'ant'+'enna'='ANTENNA'
(Other definitions for antenna that I've seen before include "receiver" , "Feature of dish" , "Insect's sensory appendage" , "connected to 41?" , "Transmitting aerial" .)