Crossword Genius

Muscular type of skinhead gets time, as it's an offence to lose the head (6)

Ross

I believe the answer is:

strong

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Here is my best explanation:

'muscular' is the definition.
('strong' can be similar in meaning to 'muscular')

I don't understand the rest of the clue.

Can you help me to learn more?

This clue was last seen in The Irish Times