Bullied ex-PM husbanding rhythm and energy (10)
I believe the answer is:
browbeaten
'bullied' is the definition.
(synonyms)
'ex-pm husbanding rhythm and energy' is the wordplay.
'ex-pm' becomes 'brown' (former UK PM Gordon Brown).
'husbanding' is an insertion indicator (to husband can mean to control or manage).
'rhythm' becomes 'beat' (synonyms).
'and' means one lot of letters go next to another.
'energy' becomes 'e' (physics symbol as in E=mc2).
'beat'+'e'='beate'
'brown' going around 'beate' is 'BROWBEATEN'.
(Other definitions for browbeaten that I've seen before include "Intimidated" , "Bullied" .)