Inadequate equipment not a worry (6)
I believe the answer is:
badger
'a worry' is the definition.
(badger can mean to bother or annoy)
'inadequate equipment not' is the wordplay.
'inadequate' becomes 'bad' (I've seen this in another clue).
'equipment not' becomes 'ger' (I can't explain this - if you can you should give a lot more credence to this answer).
'bad'+'ger'='BADGER'
Can you help me to learn more?
(Other definitions for badger that I've seen before include "One tagging" , "Beast blamed for TB" , "Black and white animal called Brock" , "Disturb" , "Harass, pester" .)