My son, tense inside, faced by male bullies (7)

'bullies' is the definition.
('hector' can be a synonym of 'bully')

'my son tense inside faced by male' is the wordplay.
I cannot really understand how this works, but
'son' could be 's' (genealogical abbreviation for son) and 's' is present in the answer.
'tense' could be 't' (abbreviation used in many dictionaries) and 't' is found in the answer.
'my' could be 'cor' (both are expressions of surprise) and 'cor' is found within the leftover letters.
'male' could be 'he' (he refers to a man) and 'he' is present in the answer.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?