In Manchester, I called Heather (5)
I believe the answer is:
erica
'heather' is the definition.
(the plant genus Erica includes heather plants)
'in manchester i called' is the wordplay.
'in' indicates a hidden word.
'ERICA' can be found hidden inside 'manchester i called'.
(Other definitions for erica that I've seen before include "Shrub genus; girl's name" , "Girl - heather" , "Plant genus of garden heather" , "Heathland shrub; girl's name" , "Female" .)