Resident in Essex travelling more (5)
I believe the answer is:
extra
'more' is the definition.
(I've seen this before)
'resident in essex travelling' is the wordplay.
'resident' says the answer is hidden in the clue (I've seen 'resident of' mean this).
'EXTRA' can be found hidden inside 'in essex travelling'.
(Other definitions for extra that I've seen before include "Additional, more than expected" , "I may carry spear" , "appearing in crowd scene" , "One has no lines" , "23 player?" .)