Somewhere in Bolivia, personal assistant coming back with illuminating insights (7)

One that'll take a drink, or one that's had too many? (7)

Joint enterprise finally getting large yield (5)

A nasty aquatic creature. One's nature? Drowning animals, primarily! (8)

Underlying – put another way, having long-term effect (10)

Ribbons arranged, we're told, for fancy man (4)

Most common Scrabble tiles gathered, bringing comfort (4)

Tries to get a ride from ship's company: it's torturous! (10)

Displays gluttony having consumed tea before end of cricketing encounters (8)

Fraudulent old girl taking public transport? (5)

Ecstasy tablets and C illegally acquired at source in Baltic state (7)

Uranium record held by source of wine: cunning! (7)

Proved highly amusing? (6,1,5)

Taking some cover, Biden poorly estimated risk (7)

Wine – cork removed – bravo! (4,4)

Tear and shatter (4)

Where a nest egg may be found to be at risk (3,2,1,4)

Initially chatty, Everyman's accepted by company that's put up with one trying to amuse (5)

Quiet, because around the French (7)

One-time occupier of dark room who's been relatively immature? (4,9)

When graduates trained hoi polloi (5,8)

Then where might I have packed those items? (2,4,4)

Being twisted, I'll abase Catholic monarch (8)

Armpit often seen in leisurewear (7)

Arranging – in a bad way – support for masts and sails (7)

Feeling fed up with starters of escargots nightly, night in Paris cut short (5)

Somewhat nouveau – that includes Iris (4)