Bloke got ripped, partly as a morale booster (3,4)
I believe the answer is:
ego trip
'a morale booster' is the definition.
(means of boosting one's morale)
'bloke got ripped partly' is the wordplay.
'partly' indicates a hidden word (part of the clue is used).
'EGO-TRIP' is hidden in the letters of 'bloke got ripped'.
'as' acts as a link.
(Other definitions for ego trip that I've seen before include "Act of self-aggrandisement" , "Act of self-glorification" , "Self-important actions" , "Activity to boost self-esteem or vanity" , "Self-serving activity" .)