Call the band (4)
I believe the answer is:
ring
I believe this clue is a double definition.
'call' is the first definition.
(telephone call)
'band' is the second definition.
(a ring is a band of metal)
'the' acts as a link.
(Other definitions for ring that I've seen before include "Group of criminals maybe" , "Make sound like phone" , "'It's a square, strangely, for boxers (4)'" , "Circus arena" , "Arena; jewellery item" .)